1 00:00:03,020 --> 00:00:04,540 - [Matthew] Hello, my name is Matthew Davies, 2 00:00:04,540 --> 00:00:06,030 and today, we will be discussing 3 00:00:06,030 --> 00:00:07,920 the neurological examination. 4 00:00:07,920 --> 00:00:10,420 The clinical neurological exam is used to assess 5 00:00:10,420 --> 00:00:12,620 the overall function of the nervous system, 6 00:00:12,620 --> 00:00:15,940 including the central and peripheral nervous systems. 7 00:00:15,940 --> 00:00:17,610 To assess the central nervous system, 8 00:00:17,610 --> 00:00:21,000 the examination covers functions of five major divisions, 9 00:00:21,000 --> 00:00:24,650 the cerebrum, the diencephalon, the brainstem, 10 00:00:24,650 --> 00:00:27,000 the cerebellum, and the spinal cord. 11 00:00:27,000 --> 00:00:29,230 The diencephalon is not easily examined 12 00:00:29,230 --> 00:00:32,420 and will not be included in this clinical examination. 13 00:00:32,420 --> 00:00:34,810 We begin with an assessment of the cerebrum. 14 00:00:34,810 --> 00:00:37,740 To do so, we assess general cortical functioning 15 00:00:37,740 --> 00:00:39,800 covering the following domains, 16 00:00:39,800 --> 00:00:43,970 level of consciousness, orientation, language, 17 00:00:43,970 --> 00:00:46,980 memory, Broca and Wernicke's area, 18 00:00:46,980 --> 00:00:48,280 and the frontal eye field. 19 00:00:49,540 --> 00:00:52,020 The level of consciousness can be assessed 20 00:00:52,020 --> 00:00:54,310 just by observing your patient. 21 00:00:54,310 --> 00:00:58,380 Orientation can be assessed by asking a few simple questions 22 00:00:58,380 --> 00:00:59,820 such as, 23 00:00:59,820 --> 00:01:01,740 can you tell me your full name, please? 24 00:01:01,740 --> 00:01:02,690 - Monica (indistinct). 25 00:01:03,600 --> 00:01:04,970 - [Matthew] And where are we today? 26 00:01:04,970 --> 00:01:05,960 - Burlington. 27 00:01:05,960 --> 00:01:08,050 - [Matthew] Okay, and what's today's date. 28 00:01:08,050 --> 00:01:09,490 - August 13th. 29 00:01:09,490 --> 00:01:10,590 - [Matthew] Very good. 30 00:01:11,460 --> 00:01:12,740 Language can be assessed 31 00:01:12,740 --> 00:01:15,300 by having the patient repeat phrases 32 00:01:15,300 --> 00:01:18,280 and to name objects with their functions. 33 00:01:18,280 --> 00:01:19,650 Could you repeat a phrase for me? 34 00:01:19,650 --> 00:01:22,760 Could you repeat the phrase no ifs, ands or buts? 35 00:01:22,760 --> 00:01:24,680 - No ifs, ands or buts. 36 00:01:24,680 --> 00:01:25,513 - Okay. 37 00:01:25,513 --> 00:01:28,240 And you can also have them name a few objects such as... 38 00:01:29,090 --> 00:01:30,530 Can you tell me what this is? 39 00:01:30,530 --> 00:01:31,363 - A hummer. 40 00:01:31,363 --> 00:01:33,010 - And what do you do with the hammer? 41 00:01:33,010 --> 00:01:34,190 - Hit stuff. 42 00:01:34,190 --> 00:01:35,023 - Very good. 43 00:01:37,024 --> 00:01:38,100 And what is this? 44 00:01:38,100 --> 00:01:38,933 - A pen. 45 00:01:38,933 --> 00:01:39,820 - And what do you do with the pen? 46 00:01:39,820 --> 00:01:40,730 - You write? 47 00:01:40,730 --> 00:01:41,823 - [Matthew] Very good. 48 00:01:47,480 --> 00:01:52,180 You can also assess short-term and long-term memory. 49 00:01:52,180 --> 00:01:54,100 To assess long-term memory, 50 00:01:54,100 --> 00:01:56,990 you can ask the patient about a specific event 51 00:01:56,990 --> 00:01:57,823 in their life. 52 00:01:58,760 --> 00:02:01,530 Could you tell me when your birthdate is please? 53 00:02:01,530 --> 00:02:03,050 - 9/15/72. 54 00:02:03,050 --> 00:02:04,020 - [Matthew] Very good. 55 00:02:04,020 --> 00:02:05,460 And for short-term memory, 56 00:02:05,460 --> 00:02:07,240 you can assess by naming three objects 57 00:02:07,240 --> 00:02:10,610 and having them repeat those back to you at five minutes. 58 00:02:10,610 --> 00:02:12,370 Could you repeat it three objects for me? 59 00:02:12,370 --> 00:02:14,140 I'm gonna have you remember them for five minutes 60 00:02:14,140 --> 00:02:15,810 and I'll ask you again later. 61 00:02:15,810 --> 00:02:18,370 Can you repeat ball, cat and tree? 62 00:02:18,370 --> 00:02:19,810 - Ball, cats and tree. 63 00:02:19,810 --> 00:02:20,810 - Very good. 64 00:02:20,810 --> 00:02:22,500 This gives you roughly enough time 65 00:02:22,500 --> 00:02:25,450 to complete your cranial nerve examination 66 00:02:25,450 --> 00:02:27,603 and ask for these objects again later. 67 00:02:28,640 --> 00:02:30,283 To test for Broca's area, 68 00:02:31,600 --> 00:02:34,060 you will also listen to the patient's speech. 69 00:02:34,060 --> 00:02:36,610 This patient will be able to understand, 70 00:02:36,610 --> 00:02:40,050 but will not be able to vocalize words, 71 00:02:40,050 --> 00:02:42,720 and this is known as expressive aphasia. 72 00:02:42,720 --> 00:02:44,800 With Wernicke's area, 73 00:02:44,800 --> 00:02:46,340 the patient will have no understanding, 74 00:02:46,340 --> 00:02:48,740 but will be able to mouth sounds 75 00:02:48,740 --> 00:02:51,390 and it will come out in something known as a word sound. 76 00:02:53,030 --> 00:02:56,040 To assess frontal eye fields you assess two functions, 77 00:02:56,040 --> 00:02:58,130 smooth pursuit and saccades, 78 00:02:58,130 --> 00:03:00,580 which is the ability to look from point to point. 79 00:03:03,310 --> 00:03:05,570 I will ask you if you can just follow my finger 80 00:03:05,570 --> 00:03:08,020 while I move it slowly from side to side, please. 81 00:03:10,090 --> 00:03:12,250 With this, you're looking for a nice, smooth movement, 82 00:03:12,250 --> 00:03:14,900 all the way to the left and all the way to the right. 83 00:03:15,800 --> 00:03:16,980 To test the cards, 84 00:03:16,980 --> 00:03:20,920 you have the patient look from one finger to the other 85 00:03:20,920 --> 00:03:22,113 quickly as possible. 86 00:03:23,330 --> 00:03:24,213 Very good. 87 00:03:24,213 --> 00:03:26,353 And you can see the quick movements of the eyes. 88 00:03:29,180 --> 00:03:30,470 This is a good time to point out 89 00:03:30,470 --> 00:03:31,970 that when you're looking right 90 00:03:33,120 --> 00:03:35,000 you're just controlled by the left cortex, 91 00:03:35,000 --> 00:03:36,270 and when you're looking at left, 92 00:03:36,270 --> 00:03:38,140 you're just controlled by the right cortex. 93 00:03:38,140 --> 00:03:39,300 Also these eye movements 94 00:03:39,300 --> 00:03:42,237 involve cranial nerves III, IV, and VI. 95 00:03:43,540 --> 00:03:45,040 The next thing that we assess 96 00:03:45,040 --> 00:03:48,050 in the neurological examination is brainstem function 97 00:03:48,050 --> 00:03:50,080 through assessment of the cranial nerves. 98 00:03:50,080 --> 00:03:53,330 This consists of 12 nerves, somewhat similar functions, 99 00:03:53,330 --> 00:03:55,880 which necessitates multiple tests. 100 00:03:55,880 --> 00:03:59,417 What we do first is at rest we assess ptosis, 101 00:03:59,417 --> 00:04:02,410 and we also make sure that the pupils are equal and round 102 00:04:02,410 --> 00:04:04,540 and that the face is symmetric. 103 00:04:04,540 --> 00:04:07,670 Cranial nerve I or the olfactory nerve 104 00:04:07,670 --> 00:04:10,590 is not assessed during the clinical neurological examination 105 00:04:10,590 --> 00:04:12,370 as this is the sense of smell 106 00:04:12,370 --> 00:04:14,970 and it's objective and can vary significantly 107 00:04:14,970 --> 00:04:16,960 from person to person. 108 00:04:16,960 --> 00:04:19,450 Cranial nerve II test visual acuity 109 00:04:19,450 --> 00:04:22,360 and it also tests visual fields. 110 00:04:22,360 --> 00:04:24,070 This is the coolest cranial nerve of all 111 00:04:24,070 --> 00:04:26,740 as you can look directly at this nerve, 112 00:04:26,740 --> 00:04:28,550 through the fundoscopic exam. 113 00:04:28,550 --> 00:04:29,450 We will not be showing you 114 00:04:29,450 --> 00:04:31,660 that part of the examination today. 115 00:04:31,660 --> 00:04:34,653 What we will show you is the assessment of visual fields. 116 00:04:37,040 --> 00:04:40,120 Can I ask you to tell me how many fingers I'm holding up 117 00:04:40,120 --> 00:04:41,770 when I hold them up. 118 00:04:41,770 --> 00:04:42,890 - Two, well, four. 119 00:04:42,890 --> 00:04:44,510 - Four, total, okay. 120 00:04:44,510 --> 00:04:45,363 - Two. - Good. 121 00:04:46,330 --> 00:04:47,790 - Two. 122 00:04:47,790 --> 00:04:49,270 Four. - Very good. 123 00:04:49,270 --> 00:04:52,770 And as you can see, all of her visual fields are intact. 124 00:04:52,770 --> 00:04:54,590 The next cranial nerves that we will discuss 125 00:04:54,590 --> 00:04:57,130 are cranial nerves III, IV, and VI, 126 00:04:57,130 --> 00:05:00,623 which control the extra ocular movements and accommodation. 127 00:05:01,550 --> 00:05:04,040 The easiest way to check all the extra ocular movements 128 00:05:04,040 --> 00:05:05,830 is to make an H with your finger 129 00:05:05,830 --> 00:05:07,527 and have the patient follow with their eyes. 130 00:05:07,527 --> 00:05:09,283 Can you please follow my finger? 131 00:05:15,900 --> 00:05:19,623 As you can see, she has full range of motion of her eyes. 132 00:05:20,980 --> 00:05:21,813 Okay. 133 00:05:23,030 --> 00:05:25,584 One other function of cranial nerve III 134 00:05:25,584 --> 00:05:26,870 is the pupillary reflex. 135 00:05:26,870 --> 00:05:29,900 And you can attest this by shining a bright light 136 00:05:29,900 --> 00:05:31,180 into the patient's eye 137 00:05:31,180 --> 00:05:33,130 and to look for pupillary constriction. 138 00:05:33,990 --> 00:05:36,300 I'll just ask if you can look right at my forehead 139 00:05:36,300 --> 00:05:38,000 while I shine a light in your eye. 140 00:05:50,300 --> 00:05:52,623 And both of her pupils constrict equally. 141 00:05:54,850 --> 00:05:56,410 The next cranial nerve that we all test 142 00:05:56,410 --> 00:05:59,100 is cranial nerve V or the trigeminal nerve, 143 00:05:59,100 --> 00:06:01,420 which tests for facial sensation. 144 00:06:01,420 --> 00:06:04,720 It also innervates the muscles of mastication 145 00:06:04,720 --> 00:06:05,623 used for chewing. 146 00:06:07,620 --> 00:06:09,230 To assess for facial sensation, 147 00:06:09,230 --> 00:06:12,000 you can ask for the patient to close their eyes, please. 148 00:06:12,000 --> 00:06:13,410 And let me know if it feels equal 149 00:06:13,410 --> 00:06:14,983 on both sides of your face. 150 00:06:17,490 --> 00:06:18,890 Does it feel the same? - Yes. 151 00:06:18,890 --> 00:06:20,480 - And here? - Yes. 152 00:06:20,480 --> 00:06:22,200 - And here? - Mm-hmm. 153 00:06:22,200 --> 00:06:23,760 - The trigeminal nerve gets its name 154 00:06:23,760 --> 00:06:26,020 because it innovates three different portions of the face 155 00:06:26,020 --> 00:06:29,250 as seen with the forehead, over the cheekbone 156 00:06:29,250 --> 00:06:30,193 and over the jaw. 157 00:06:31,220 --> 00:06:34,160 Cranial nerve V also controls the muscles of mastication, 158 00:06:34,160 --> 00:06:37,830 which can be tested by having the patient clench their jaw 159 00:06:37,830 --> 00:06:40,580 and feeling directly over the masseter muscle. 160 00:06:40,580 --> 00:06:42,993 In her, you can feel the muscle contract. 161 00:06:46,080 --> 00:06:47,430 The next cranial nerve that we test 162 00:06:47,430 --> 00:06:49,630 is cranial nerve VII or the facial nerve, 163 00:06:49,630 --> 00:06:52,530 which constitutes facial strength 164 00:06:52,530 --> 00:06:54,830 involving wrinkling of the forehead, 165 00:06:54,830 --> 00:06:58,030 being able to smile and being able to close the eyes. 166 00:06:58,030 --> 00:06:59,940 Wrinkling of the forehead is the most important 167 00:06:59,940 --> 00:07:02,460 because this can distinguish between central nervous system 168 00:07:02,460 --> 00:07:04,810 and peripheral nervous system lesions. 169 00:07:04,810 --> 00:07:06,750 With the peripheral nervous system lesion 170 00:07:06,750 --> 00:07:08,160 of cranial nerve VII, 171 00:07:08,160 --> 00:07:12,180 the patient will be unable to wrinkle up the forehead. 172 00:07:12,180 --> 00:07:14,070 With a central nervous system lesion, 173 00:07:14,070 --> 00:07:17,280 the patient will still be able to wrinkle the forehead, 174 00:07:17,280 --> 00:07:20,763 essentially, this is innervated bilaterally. 175 00:07:23,560 --> 00:07:25,060 So can I have you do a few things for me? 176 00:07:25,060 --> 00:07:27,610 Can you give me a big smile with your teeth, please? 177 00:07:27,610 --> 00:07:28,443 Very good. 178 00:07:28,443 --> 00:07:30,080 And can you close your eyes nice and tight? 179 00:07:30,080 --> 00:07:32,370 Very tight, don't let me open them. 180 00:07:32,370 --> 00:07:34,070 Good, you can open your eyes. 181 00:07:34,070 --> 00:07:35,630 Can you wrinkle up your forehead? 182 00:07:35,630 --> 00:07:36,463 Good. 183 00:07:36,463 --> 00:07:37,650 And the last thing you can have them do 184 00:07:37,650 --> 00:07:39,370 to test for subtle facial weakness 185 00:07:39,370 --> 00:07:41,770 is to have them puff out their cheeks 186 00:07:41,770 --> 00:07:43,470 and don't let me push the air out. 187 00:07:45,350 --> 00:07:46,183 Very good. 188 00:07:49,678 --> 00:07:52,700 The eighth cranial nerve or the vestibular cochlear nerve 189 00:07:52,700 --> 00:07:55,330 test both hearing and the vestibular reflex. 190 00:07:55,330 --> 00:07:58,430 The vestibular component is tested via the Romberg exam, 191 00:07:58,430 --> 00:08:00,140 which we will do it later on. 192 00:08:00,140 --> 00:08:00,973 To test for hearing, 193 00:08:00,973 --> 00:08:04,000 you can have the patient occlude one ear with their finger. 194 00:08:04,000 --> 00:08:06,033 Can you put your right finger in it right ear? 195 00:08:08,030 --> 00:08:09,170 And then can you please tell me 196 00:08:09,170 --> 00:08:10,770 when you hear the rubbing sound? 197 00:08:11,980 --> 00:08:13,030 - Now. - Okay. 198 00:08:13,030 --> 00:08:16,160 And then you can put your finger in the other ear. 199 00:08:16,160 --> 00:08:17,469 And let me know when you can hear the sound. 200 00:08:17,469 --> 00:08:18,427 - Yes. - Very good. 201 00:08:18,427 --> 00:08:19,920 - Now. 202 00:08:19,920 --> 00:08:21,553 - Her hearing is intact. 203 00:08:23,490 --> 00:08:24,863 Cranial nerves IX and X, 204 00:08:24,863 --> 00:08:27,710 the glossopharyngeal and the vagal nerves 205 00:08:27,710 --> 00:08:29,260 are involved in palate movement 206 00:08:29,260 --> 00:08:31,120 such as when a patient says, ah, 207 00:08:31,120 --> 00:08:34,140 and also are involved in the gag reflex. 208 00:08:34,140 --> 00:08:36,520 So this can be assessed by having the patient say, ah, 209 00:08:36,520 --> 00:08:38,420 and looking at the palate movement. 210 00:08:39,420 --> 00:08:42,190 Can I have you stick out your tongue please and say, ah? 211 00:08:42,190 --> 00:08:43,050 - Ah. 212 00:08:43,050 --> 00:08:43,883 - Very good. 213 00:08:43,883 --> 00:08:47,630 And in her, her palate elevates symmetrically. 214 00:08:47,630 --> 00:08:50,837 You can also assess the functions of cranial nerve VII, 215 00:08:50,837 --> 00:08:54,930 IX, and XII, by having them say a simple three word phrase. 216 00:08:54,930 --> 00:08:56,550 Can you repeat the phrase pa? 217 00:08:56,550 --> 00:08:57,400 - Pa. 218 00:08:57,400 --> 00:08:58,490 - Ka. - Ka. 219 00:08:58,490 --> 00:08:59,890 - And ta. - Ta. 220 00:08:59,890 --> 00:09:03,430 - Pa, ka, ta, a very unique and interesting phrase, 221 00:09:03,430 --> 00:09:04,640 gives you a lot of information 222 00:09:04,640 --> 00:09:06,730 about the function of cranial nerves. 223 00:09:06,730 --> 00:09:10,210 The pa sound is the function of cranial nerve VII. 224 00:09:10,210 --> 00:09:11,130 As you need the... 225 00:09:11,130 --> 00:09:14,260 You need that nerve intact to make a P. 226 00:09:14,260 --> 00:09:17,510 Cranial nerve IX is involved in making the ka sound 227 00:09:17,510 --> 00:09:20,090 or the K, and cranial nerve XII 228 00:09:20,090 --> 00:09:23,780 is involved in making the ta sound or the T. 229 00:09:23,780 --> 00:09:25,350 A key point is that swallowing 230 00:09:25,350 --> 00:09:28,310 involves cranial nerves IX, X and XI. 231 00:09:28,310 --> 00:09:30,510 So this requires analysis of other components 232 00:09:30,510 --> 00:09:32,220 of these cranial nerves. 233 00:09:32,220 --> 00:09:36,610 Cranial nerve X also controls blood pressure and heart rate. 234 00:09:36,610 --> 00:09:38,410 This can be used to assess other functions 235 00:09:38,410 --> 00:09:40,060 of cranial nerve X. 236 00:09:40,060 --> 00:09:43,090 Cranial nerve XII, which we'll test next 237 00:09:43,090 --> 00:09:45,150 can be assessed by doing shoulder shrugs 238 00:09:45,150 --> 00:09:46,363 and by turning the neck. 239 00:09:48,060 --> 00:09:48,930 During these motions, 240 00:09:48,930 --> 00:09:51,690 what you're trying to assess is for atrophy 241 00:09:51,690 --> 00:09:55,133 of either the trapezius or the sternocleidomastoid muscle. 242 00:09:57,160 --> 00:09:59,510 So to test cranial nerve XI 243 00:09:59,510 --> 00:10:01,110 you can have the patient look at the left, 244 00:10:01,110 --> 00:10:04,563 turn the head to the left, and then push back towards me. 245 00:10:05,560 --> 00:10:06,393 Good. 246 00:10:06,393 --> 00:10:09,360 And then look to the right and push back towards me. 247 00:10:09,360 --> 00:10:11,680 What you're looking for is the sternocleidomastoid muscle 248 00:10:11,680 --> 00:10:12,520 right here. 249 00:10:12,520 --> 00:10:14,390 You're looking for some atrophy. 250 00:10:14,390 --> 00:10:15,457 To test another function of cranial nerve XI 251 00:10:15,457 --> 00:10:18,300 you can have the patient shrug their shoulders 252 00:10:18,300 --> 00:10:20,640 and don't let me push them down. 253 00:10:20,640 --> 00:10:21,473 Very good. 254 00:10:24,860 --> 00:10:25,830 Cranial nerve XII, 255 00:10:25,830 --> 00:10:28,300 or the hypoglossal nerve controls tongue movement, 256 00:10:28,300 --> 00:10:30,470 which is very easy to test. 257 00:10:30,470 --> 00:10:31,900 What you can do is just have the patient 258 00:10:31,900 --> 00:10:33,410 stick their tongue out at you. 259 00:10:33,410 --> 00:10:34,243 Very good. 260 00:10:35,350 --> 00:10:38,060 And assess for deviation and for atrophy. 261 00:10:38,060 --> 00:10:39,910 Now is the perfect time for your patient 262 00:10:39,910 --> 00:10:41,130 to repeat the three objects 263 00:10:41,130 --> 00:10:44,940 that we talked about early to test the short-term memory. 264 00:10:44,940 --> 00:10:46,210 Can you repeat those three objects 265 00:10:46,210 --> 00:10:47,570 that we spoke about earlier? 266 00:10:47,570 --> 00:10:48,960 - Cat, ball and tree. 267 00:10:48,960 --> 00:10:49,793 - Very good. 268 00:10:51,350 --> 00:10:53,950 The next part that we will assess is the motor function, 269 00:10:53,950 --> 00:10:55,600 which is an assessment of both cortical 270 00:10:55,600 --> 00:10:57,290 and spinal functioning. 271 00:10:57,290 --> 00:10:59,890 Assessment includes the following components, 272 00:10:59,890 --> 00:11:03,860 muscle bulk, muscle tone, pronator drift, 273 00:11:03,860 --> 00:11:05,800 and muscle strength. 274 00:11:05,800 --> 00:11:09,060 Muscle bulk can be assessed just by looking for atrophy 275 00:11:09,060 --> 00:11:10,660 of any major muscle group, 276 00:11:10,660 --> 00:11:13,653 which would be a sign of a lower motor neuron disease. 277 00:11:15,520 --> 00:11:19,493 Muscle tone can be assessed by the following, 278 00:11:21,510 --> 00:11:23,140 can I have your wrist please? 279 00:11:23,140 --> 00:11:25,620 And you can just have your wrist nice and loose. 280 00:11:25,620 --> 00:11:27,540 And you're looking for either rigidity 281 00:11:27,540 --> 00:11:29,970 or spasticity of the muscle groups. 282 00:11:29,970 --> 00:11:31,020 You can test both sides 283 00:11:31,020 --> 00:11:32,870 to make sure that there's symmetrical 284 00:11:38,480 --> 00:11:39,673 The pronator drift, 285 00:11:41,330 --> 00:11:44,222 which helps distinguish between upper motor neuron sign. 286 00:11:44,222 --> 00:11:46,750 When the patient's arms are extended, 287 00:11:46,750 --> 00:11:50,350 their arms tend to pronate versus a muscular disease 288 00:11:50,350 --> 00:11:51,540 such as shoulder weakness, 289 00:11:51,540 --> 00:11:53,740 where their arm would drop without pronating. 290 00:11:53,740 --> 00:11:54,573 This can be assessed 291 00:11:54,573 --> 00:11:55,950 by having your patients stick their arms out 292 00:11:55,950 --> 00:11:59,480 in front of them with their palms up and closing their eyes. 293 00:11:59,480 --> 00:12:01,980 Typically, you would do this for about 30 seconds. 294 00:12:04,390 --> 00:12:05,940 All right, thank you very much. 295 00:12:07,770 --> 00:12:10,110 The last component of the motor function exam 296 00:12:10,110 --> 00:12:11,580 is the muscle strength. 297 00:12:11,580 --> 00:12:13,870 What you want to assess is major muscle groups, 298 00:12:13,870 --> 00:12:17,490 such as the biceps, the triceps, the quads, 299 00:12:17,490 --> 00:12:20,170 and then the ankle dorsi and plantar flexion. 300 00:12:20,170 --> 00:12:23,020 We will just show you an example of a few of those today. 301 00:12:23,990 --> 00:12:26,260 Can I have you make a nice big fist? 302 00:12:26,260 --> 00:12:28,183 And don't let me pull your arm away. 303 00:12:29,130 --> 00:12:29,963 Good. 304 00:12:29,963 --> 00:12:31,940 And then you wanna test on both sides 305 00:12:31,940 --> 00:12:33,330 and look for symmetry. 306 00:12:33,330 --> 00:12:34,163 Very good. 307 00:12:34,163 --> 00:12:36,650 And can you lift this leg up in the air? 308 00:12:36,650 --> 00:12:37,483 Very good. 309 00:12:37,483 --> 00:12:39,300 Don't let me push. 310 00:12:39,300 --> 00:12:42,240 And same with this side, don't let me push down. 311 00:12:42,240 --> 00:12:43,470 Good. 312 00:12:43,470 --> 00:12:46,420 In the muscle groups that we tested, she has full strength. 313 00:12:47,670 --> 00:12:49,840 The next part of the neurological examination 314 00:12:49,840 --> 00:12:51,340 is to assess coordination, 315 00:12:51,340 --> 00:12:54,230 which gives us important information about the cerebellum. 316 00:12:54,230 --> 00:12:56,480 This assessment includes finger tapping, 317 00:12:56,480 --> 00:12:59,910 rapid alternating movements and the finger to nose test. 318 00:12:59,910 --> 00:13:04,414 Finger tapping, which we'll demonstrate shortly (coughs) 319 00:13:04,414 --> 00:13:06,580 is an assessment of dexterity. 320 00:13:06,580 --> 00:13:09,263 Can I just have you rapidly tap your fingers? 321 00:13:10,170 --> 00:13:11,003 Very good. 322 00:13:11,003 --> 00:13:13,650 In her it's quick and symmetrical. 323 00:13:13,650 --> 00:13:17,090 The next part to assess is rapid alternating movements, 324 00:13:17,090 --> 00:13:18,880 which tests cerebellar function. 325 00:13:18,880 --> 00:13:20,360 This can be assessed by having the patient 326 00:13:20,360 --> 00:13:22,880 put their hands with their palms down on their legs 327 00:13:22,880 --> 00:13:25,580 and having them quickly flip back and forth, 328 00:13:25,580 --> 00:13:27,750 and then to go as fast as possible. 329 00:13:27,750 --> 00:13:29,503 Again, you're looking for symmetry. 330 00:13:30,486 --> 00:13:32,150 Very good. 331 00:13:32,150 --> 00:13:35,140 The last part of this cerebellar and coordination function 332 00:13:35,140 --> 00:13:37,113 is the finger to nose test. 333 00:13:39,770 --> 00:13:41,600 A tremor in the horizontal direction 334 00:13:42,960 --> 00:13:45,210 is a finding in cerebellar disease 335 00:13:45,210 --> 00:13:48,470 versus a resting tremor such as in Parkinson's disease 336 00:13:48,470 --> 00:13:51,553 can actually improve with movement during this exam. 337 00:13:52,420 --> 00:13:54,360 So what you have the patient do, 338 00:13:54,360 --> 00:13:56,680 is take their right index finger 339 00:13:56,680 --> 00:13:58,670 and then go towards my index finger 340 00:13:58,670 --> 00:14:01,893 and back towards their nose and keep going back and forth. 341 00:14:03,240 --> 00:14:06,240 Make sure that you move far and make you difficult. 342 00:14:06,240 --> 00:14:07,330 And then you can assess 343 00:14:07,330 --> 00:14:08,430 the left index finger (Monica laughs) 344 00:14:08,430 --> 00:14:09,283 and do the same. 345 00:14:12,920 --> 00:14:13,753 Very good. 346 00:14:18,090 --> 00:14:19,650 Next, we will assess reflexes, 347 00:14:19,650 --> 00:14:22,820 both deep tendon and superficial reflexes. 348 00:14:22,820 --> 00:14:26,930 Deep tendon reflexes are assessed with a reflex hammer. 349 00:14:26,930 --> 00:14:30,730 Hyperreflexia is a sign of an upper motor neuron disease, 350 00:14:30,730 --> 00:14:35,083 whereas hyperreflexia is a sign of a motor neuron disease. 351 00:14:36,550 --> 00:14:38,710 You can test several muscle groups 352 00:14:38,710 --> 00:14:41,330 and several deep tendon reflexes this way. 353 00:14:41,330 --> 00:14:42,820 The one that we will give an example with 354 00:14:42,820 --> 00:14:44,223 is the patella reflex. 355 00:14:45,885 --> 00:14:46,730 Okay. 356 00:14:46,730 --> 00:14:48,970 So you can just ask the patient to just relax 357 00:14:48,970 --> 00:14:51,623 and I'm gonna tap on your knee with the reflex hammer. 358 00:14:55,550 --> 00:14:56,383 Very good. 359 00:15:04,761 --> 00:15:06,910 Yeah, her reflexes are intact. 360 00:15:06,910 --> 00:15:09,293 Superficial reflex is involved with Babinski 361 00:15:09,293 --> 00:15:12,070 when you scratch the undersurface of the toe, 362 00:15:12,070 --> 00:15:15,280 a positive the Babinski sign or present Babinski sign 363 00:15:15,280 --> 00:15:16,400 is this simple. 364 00:15:16,400 --> 00:15:19,000 An example of an upper motor neuron disorder. 365 00:15:19,000 --> 00:15:21,350 We will not be testing that in this exam today. 366 00:15:22,440 --> 00:15:24,260 Next, we will assess body sensation, 367 00:15:24,260 --> 00:15:26,160 which is another assessment of both cortical 368 00:15:26,160 --> 00:15:27,690 and spinal functioning. 369 00:15:27,690 --> 00:15:30,780 Similar to cranial nerve V and facial sensation, 370 00:15:30,780 --> 00:15:32,780 we need to test the function of the spinal nerves 371 00:15:32,780 --> 00:15:35,410 controlling sensation to the rest of the body. 372 00:15:35,410 --> 00:15:36,243 Most importantly, 373 00:15:36,243 --> 00:15:38,060 again, is to note the differences between the right 374 00:15:38,060 --> 00:15:39,723 and the left side symmetrically. 375 00:15:40,580 --> 00:15:43,630 The different modalities that you can test are light touch, 376 00:15:43,630 --> 00:15:47,760 sharp sensation, proprioception, and vibration. 377 00:15:47,760 --> 00:15:48,760 To test light touch 378 00:15:48,760 --> 00:15:53,580 you can simply touch on different surfaces of the body. 379 00:15:53,580 --> 00:15:55,850 And can I have you close your eyes, please? 380 00:15:55,850 --> 00:15:57,890 Does it feel the same when I rubbed my fingers on here 381 00:15:57,890 --> 00:15:58,835 on both sides? 382 00:15:58,835 --> 00:16:00,010 - Yes, it does. 383 00:16:00,010 --> 00:16:01,930 - And the same on the feet? - Mm-hmm. 384 00:16:01,930 --> 00:16:02,763 - Very good. 385 00:16:03,820 --> 00:16:07,100 To test sharp you can use the end of a reflex hammer, 386 00:16:07,100 --> 00:16:09,510 or you can use any other sharp object. 387 00:16:09,510 --> 00:16:12,143 Just make sure that it's not dangerous for the patient. 388 00:16:13,670 --> 00:16:15,610 I'm gonna be putting a sharp object on your hand, 389 00:16:15,610 --> 00:16:17,150 it will feel like this. - Mm-hmm. 390 00:16:17,150 --> 00:16:18,920 - And I just want you to let me know when you can feel it, 391 00:16:18,920 --> 00:16:20,240 okay? 392 00:16:20,240 --> 00:16:21,073 - Yes. 393 00:16:22,020 --> 00:16:23,210 - And here? - Yes. 394 00:16:23,210 --> 00:16:24,810 - And then on your foot as well. 395 00:16:26,330 --> 00:16:27,163 - Yes. 396 00:16:28,599 --> 00:16:29,566 No. 397 00:16:29,566 --> 00:16:30,399 - Okay. 398 00:16:31,767 --> 00:16:33,710 And you can open your eyes for a second. 399 00:16:33,710 --> 00:16:36,240 We'll demonstrate how to do a proprioception exam. 400 00:16:36,240 --> 00:16:39,460 If you stick your hand out with your thumb up in the air. 401 00:16:39,460 --> 00:16:42,240 And I want you to tell me whether it's up, down, 402 00:16:42,240 --> 00:16:43,990 or in the neutral position. 403 00:16:43,990 --> 00:16:46,090 And now we'll do it with your eyes closed. 404 00:16:47,080 --> 00:16:48,560 - Up. 405 00:16:48,560 --> 00:16:49,820 Down. 406 00:16:49,820 --> 00:16:50,890 Neutral. - Very good. 407 00:16:50,890 --> 00:16:52,840 And we can test the other hand as well. 408 00:16:53,880 --> 00:16:54,713 - Up. 409 00:16:55,590 --> 00:16:56,540 Down. 410 00:16:56,540 --> 00:16:57,520 Neutral. 411 00:16:57,520 --> 00:16:59,743 - You can also assess the toes this way. 412 00:17:01,260 --> 00:17:05,330 And the last modality to test is the vibration sense, 413 00:17:05,330 --> 00:17:07,180 which can be done with a tuning fork. 414 00:17:08,190 --> 00:17:10,990 So we'll do this with the eyes open first to demonstrate. 415 00:17:10,990 --> 00:17:14,140 So you would be feeling for a vibration sense like this. 416 00:17:14,140 --> 00:17:15,510 I'm gonna ask when you can feel it 417 00:17:15,510 --> 00:17:17,700 and when you don't feel it anymore. 418 00:17:17,700 --> 00:17:20,490 The key to this is doing it over a bony part of the hand. 419 00:17:20,490 --> 00:17:22,543 So can I have you close your eyes, please? 420 00:17:26,150 --> 00:17:26,983 - Yes. 421 00:17:26,983 --> 00:17:29,283 - And let me know when you don't feel it anymore. 422 00:17:30,560 --> 00:17:31,465 - No. 423 00:17:31,465 --> 00:17:32,570 - Okay. 424 00:17:32,570 --> 00:17:33,820 Same with the other side. 425 00:17:35,190 --> 00:17:36,023 - Yes. 426 00:17:37,640 --> 00:17:38,560 No. 427 00:17:38,560 --> 00:17:39,393 - Very good. 428 00:17:40,300 --> 00:17:43,490 Last we will be assessing stance and gait. 429 00:17:43,490 --> 00:17:45,810 This includes the Romberg exam. 430 00:17:45,810 --> 00:17:47,840 To test the Romberg the brain requires input 431 00:17:47,840 --> 00:17:51,030 from two out of three domains to maintain balance. 432 00:17:51,030 --> 00:17:56,030 These domains are proprioception, vestibular and vision. 433 00:17:56,220 --> 00:17:58,160 Romberg takes away the vision component, 434 00:17:58,160 --> 00:18:01,100 so we have a complete assessment of proprioception 435 00:18:01,100 --> 00:18:03,490 and vestibular reflexes. 436 00:18:03,490 --> 00:18:04,323 To test Romberg, 437 00:18:04,323 --> 00:18:06,460 you can have the patient stand 438 00:18:06,460 --> 00:18:08,760 with their feet close together, 439 00:18:08,760 --> 00:18:10,600 with the hands at their sides, 440 00:18:10,600 --> 00:18:12,160 and then ask them to close their eyes 441 00:18:12,160 --> 00:18:14,993 while you help them maintain their balance. 442 00:18:18,240 --> 00:18:19,610 She has a negative Romberg 443 00:18:19,610 --> 00:18:22,530 as she is able to maintain her balance during this exam. 444 00:18:22,530 --> 00:18:24,370 You can open your eyes. 445 00:18:24,370 --> 00:18:27,860 And the last thing that we will test is her gait. 446 00:18:27,860 --> 00:18:30,210 This can be assessed by multiple different modalities, 447 00:18:30,210 --> 00:18:34,140 including a normal gait, toe walking, heel walking, 448 00:18:34,140 --> 00:18:35,453 and then a tandem gait. 449 00:18:36,700 --> 00:18:37,970 Make sure that when you're assessing this, 450 00:18:37,970 --> 00:18:39,410 you walk by the side of your patient 451 00:18:39,410 --> 00:18:41,543 in case they do have a balance problem. 452 00:18:42,890 --> 00:18:45,150 All right, I'll just ask you if you can take a few steps 453 00:18:45,150 --> 00:18:47,573 with your normal gait towards the door. 454 00:18:48,840 --> 00:18:49,673 Good. 455 00:18:49,673 --> 00:18:52,370 And then you can turn around and walk back towards the wall 456 00:18:52,370 --> 00:18:54,240 on your toes. 457 00:18:54,240 --> 00:18:55,073 - My toes? 458 00:18:55,073 --> 00:18:55,906 - Yes, very good. 459 00:18:56,980 --> 00:18:57,813 Okay. 460 00:18:57,813 --> 00:19:00,693 And turn around and back towards the door on your heels. 461 00:19:03,240 --> 00:19:06,240 And one last time, walk back towards the wall 462 00:19:06,240 --> 00:19:08,083 with one foot in front of the other. 463 00:19:14,220 --> 00:19:15,053 Very good. 464 00:19:17,070 --> 00:19:19,470 All right, that's the end of the gait. 465 00:19:19,470 --> 00:19:20,303 So that concludes 466 00:19:20,303 --> 00:19:22,570 the end of the clinical neurological examination. 467 00:19:22,570 --> 00:19:24,590 I thank you very much for joining us today 468 00:19:24,590 --> 00:19:26,740 and I wish you the very best in your class.