Dermatome Testing
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Questions and Answers

Which dermatome corresponds to the temporal region, anterior forehead, and occipital region?

  • C1
  • C4
  • C3
  • C2 (correct)

    • The deltoid area and anterior aspect of the arm to the base of the first digit are innervated by which dermatome?

  • C4
  • C5 (correct)
  • C6
  • C7

    • Which dermatome innervates the medial aspect of the forearm and the 3rd, 4th, and 5th digits?

  • C8 (correct)
  • C6
  • T1
  • C7

    • The cervical region, posterior cheek, temporal region, and inframandibular region are innervated by which dermatome?

    <p>C3</p> Signup and view all the answers

    Which dermatome innervates the anterior shoulder, clavicular region, and superior scapular region?

    <p>C4</p> Signup and view all the answers

    Which dermatome corresponds to the anterior arm and the radial aspect of the hand to the 1st and 2nd digits?

    <p>C6</p> Signup and view all the answers

    Which dermatome corresponds to the lateral aspect of the arm and forearm, and the 2nd, 3rd, and 4th digits?

    <p>C7</p> Signup and view all the answers

    Which dermatome corresponds to the cervical region, posterior cheek, temporal region, and inframandibular region?

    <p>C3</p> Signup and view all the answers

    Which dermatome innervates the anterior shoulder, clavicular region, and superior scapular region?

    <p>C4</p> Signup and view all the answers

    Which dermatome corresponds to the temporal region, anterior forehead, and occipital region?

    <p>C2</p> Signup and view all the answers

    The _______ area, anterior aspect of arm to base of 1st digit

    <p>deltoid</p> Signup and view all the answers

    C3 Cervical region, posterior cheek, _______ region, inframandibular region

    <p>temporal</p> Signup and view all the answers

    _______ aspect of arm and forearm, 2nd, 3rd and 4th digits

    <p>lateral</p> Signup and view all the answers

    C1 Superior aspect of the _______

    <p>head</p> Signup and view all the answers

    Anterior arm, radial aspect of the hand to the 1st and 2nd digits C6 _______

    <p>dermatome</p> Signup and view all the answers

    Dermatomes are areas of skin innervated by a single pair of spinal nerves.

    <p>True</p> Signup and view all the answers

    The occipital region is innervated by the C2 dermatome.

    <p>False</p> Signup and view all the answers

    The deltoid area is innervated by the C5 dermatome.

    <p>False</p> Signup and view all the answers

    The C6 dermatome innervates the lateral aspect of the arm and forearm.

    <p>False</p> Signup and view all the answers

    The medial aspect of the forearm and the 3rd, 4th, and 5th digits are innervated by the C8 dermatome.

    <p>True</p> Signup and view all the answers

    Which dermatome innervates the medial aspect of the upper arm, medial elbow, pectoral region, and scapular region?

    <p>T2</p> Signup and view all the answers

    Which dermatome innervates the anterior thoracic region inferior to the nipples and the posterior thoracic region?

    <p>T5</p> Signup and view all the answers

    The anterior abdominal region at the level of the umbilicus is innervated by which dermatome?

    <p>T10</p> Signup and view all the answers

    Which dermatome innervates the anterior abdominal region between the umbilicus and the inguinal ligament?

    <p>T11</p> Signup and view all the answers

    Which dermatome innervates the posterior lumbar region superior to the gluteal region?

    <p>T12</p> Signup and view all the answers

    The C3 dermatome innervates the cervical region, posterior cheek, ______ region, inframandibular region

    <p>temporal</p> Signup and view all the answers

    Anterior arm, radial aspect of the hand to the 1st and 2nd digits C6 _______

    <p>lateral</p> Signup and view all the answers

    The ______ area, anterior aspect of arm to base of 1st digit

    <p>deltoid</p> Signup and view all the answers

    C1 Superior aspect of the ______

    <p>head</p> Signup and view all the answers

    ______ aspect of arm and forearm, 2nd, 3rd and 4th digits

    <p>medial</p> Signup and view all the answers

    The T8 dermatome corresponds to the anterior abdominal regions between the xiphoid process and the umbilicus.

    <p>True</p> Signup and view all the answers

    The T11 dermatome innervates the posterior lumbar region superior to the gluteal region.

    <p>False</p> Signup and view all the answers

    The T4 dermatome corresponds to the anterior thoracic region at the level of the nipples.

    <p>True</p> Signup and view all the answers

    The T9 dermatome corresponds to the anterior abdominal region at the level of the umbilicus.

    <p>False</p> Signup and view all the answers

    The T12 dermatome innervates the anterior abdominal region at the level of the inguinal ligament.

    <p>True</p> Signup and view all the answers

    Which dermatome innervates the buttock, posterior and lateral side of the thigh, lateral aspect of the leg, dorsum of the foot, medial half of the plantar foot, and the first, second and third toes?

    <p>L5</p> Signup and view all the answers

    Which dermatome innervates the groin, medial thigh to the knee?

    <p>S3</p> Signup and view all the answers

    Which dermatome innervates the perineum, genitals, and lower sacrum?

    <p>S4</p> Signup and view all the answers

    Which dermatome innervates the back, superior buttock, anterior thigh and knee, and medial lower leg?

    <p>L3</p> Signup and view all the answers

    Which dermatome innervates the back, greater trochanter, and groin area?

    <p>L1</p> Signup and view all the answers

    The ______ corresponds to the anterior abdominal region between the umbilicus and the inguinal ligament

    <p>L3</p> Signup and view all the answers

    The T12 dermatome innervates the anterior abdominal region at the level of the ______

    <p>inguinal ligament</p> Signup and view all the answers

    Which dermatome innervates the groin, medial thigh to the ______?

    <p>knee</p> Signup and view all the answers

    The ______ dermatome corresponds to the lateral aspect of the arm and forearm, and the 2nd, 3rd, and 4th digits

    <p>C6</p> Signup and view all the answers

    ______ area, anterior aspect of arm to base of 1st digit

    <p>Deltoid</p> Signup and view all the answers

    The L3 dermatome includes the back, anterior thigh to the knee.

    <p>True</p> Signup and view all the answers

    The S4 dermatome innervates the perineum, genitals, and lower sacrum.

    <p>True</p> Signup and view all the answers

    The L5 dermatome includes the buttock, posterior and lateral side of the thigh, and medial half of the plantar foot.

    <p>True</p> Signup and view all the answers

    The S2 dermatome corresponds to the same regions as S1.

    <p>False</p> Signup and view all the answers

    The S3 dermatome innervates the groin and medial thigh to the knee.

    <p>True</p> Signup and view all the answers

    The L1 dermatome includes the back, greater trochanter, _______ area

    <p>groin</p> Signup and view all the answers

    The S1 dermatome includes the buttock, posterior thigh, lower leg, and _______

    <p>foot</p> Signup and view all the answers

    The C3 dermatome innervates the cervical region, posterior cheek, temporal region, and _______ region

    <p>inframandibular</p> Signup and view all the answers

    The T8 dermatome corresponds to the anterior abdominal regions between the xiphoid process and the _______

    <p>umbilicus</p> Signup and view all the answers

    The S4 dermatome innervates the perineum, genitals, and lower _______

    <p>sacrum</p> Signup and view all the answers

    What is the purpose of performing a dermatome test?

    <p>To determine if there is any damage to a specific nerve root resulting in abnormal sensation</p> Signup and view all the answers

    How should Lumbar nerve root tests be performed?

    <p>Supine along the anterior leg</p> Signup and view all the answers

    Which area of the skin is supplied by the tested nerve root in a dermatome test?

    <p>Specific region of the skin</p> Signup and view all the answers

    In which position are Lumbar nerve root tests best conducted?

    <p>Supine along the anterior leg</p> Signup and view all the answers

    Which region of the body is assessed during a Sacral nerve root test?

    <p>Prone along the posterior leg</p> Signup and view all the answers

    What is the significance of identifying the purpose of a dermatome test?

    <p>To guide appropriate treatment based on sensory abnormalities</p> Signup and view all the answers

    The candidate begins by stating that they will perform a dermatome test and identifies which dermatome they will be testing. The purpose of performing the dermatome test is to determine whether there is any damage to the specific nerve root that results in abnormal or loss of sensation to the area of skin supplied by the tested nerve root. This test assesses the patient's ability to recognize sensory stimulation on the skin within a specific ______

    <p>dermatome</p> Signup and view all the answers

    Candidates showing different sides of the reflex hammer. There is a dull side and a ______ side.

    <p>sharp</p> Signup and view all the answers

    The position of the patient is determined by the nerve root being assessed: Cervical and Thoracic nerve root tests can be performed in the seated position. Lumbar nerve root tests are best performed in supine along the anterior leg. Sacral nerve root tests are best performed in prone along the ______ leg.

    <p>posterior</p> Signup and view all the answers

    The anterior abdominal region between the umbilicus and the inguinal ligament is innervated by the ______ dermatome.

    <p>T7</p> Signup and view all the answers

    Dermatomes are areas of skin innervated by a single pair of ______ nerves.

    <p>spinal</p> Signup and view all the answers

    The S1 dermatome includes the buttock, posterior thigh, lower leg, and ______

    <p>foot</p> Signup and view all the answers

    A dermatome test assesses the patient's ability to recognize visual stimulation on the skin.

    <p>False</p> Signup and view all the answers

    The position of the patient for a lumbar nerve root test is best performed standing up.

    <p>False</p> Signup and view all the answers

    The C4 dermatome innervates the cervical region, posterior cheek, and the temporal region.

    <p>False</p> Signup and view all the answers

    The S2 dermatome includes the buttock, posterior and lateral side of the thigh, and the lateral aspect of the leg.

    <p>True</p> Signup and view all the answers

    The T7 dermatome corresponds to the anterior chest below the nipple level.

    <p>True</p> Signup and view all the answers

    The C6 dermatome innervates the anterior arm and the radial aspect of the hand to the 1st and 2nd digits.

    <p>True</p> Signup and view all the answers

    What should a candidate do before starting the dermatome test?

    <p>Tell the patient they will apply the tool on a different area first.</p> Signup and view all the answers

    What is the purpose of informing the patient that they will close their eyes during the dermatome test?

    <p>To prevent bias in the patient's response.</p> Signup and view all the answers

    Why does the candidate inform the patient about testing the dermatome bilaterally?

    <p>To compare sensation levels between both sides.</p> Signup and view all the answers

    What is the purpose of applying the tool on an unaffected segment of skin before testing the specified dermatome?

    <p>To establish a baseline for comparison.</p> Signup and view all the answers

    Why does the candidate ask the patient if they have any questions before proceeding with the dermatome test?

    <p>To encourage communication and address concerns.</p> Signup and view all the answers

    The candidate should inform and show the patient how they will test the _________.

    <p>dermatome</p> Signup and view all the answers

    The candidate will use a tool with a sharp and dull end; a reflex hammer can often _______.

    <p>suffice</p> Signup and view all the answers

    The T8 dermatome corresponds to the anterior abdominal regions between the xiphoid process and the _______.

    <p>umbilicus</p> Signup and view all the answers

    The S1 dermatome includes the buttock, posterior thigh, lower leg, and _______.

    <p>foot</p> Signup and view all the answers

    Dermatomes are areas of skin innervated by a single pair of spinal _______.

    <p>nerves</p> Signup and view all the answers

    The candidate should inform the patient about the dermatome test before showing the tools to be used.

    <p>False</p> Signup and view all the answers

    In a dermatome test, the candidate will apply the tool on an unaffected segment of the patient's skin after testing the specified dermatome.

    <p>True</p> Signup and view all the answers

    The candidate should inform the patient that they will only test the dermatome unilaterally, not bilaterally.

    <p>False</p> Signup and view all the answers

    The T9 dermatome corresponds to the anterior abdominal region at the level of the xiphoid process.

    <p>False</p> Signup and view all the answers

    Dermatomes are areas of skin innervated by multiple pairs of spinal nerves.

    <p>False</p> Signup and view all the answers

    What is the purpose of performing a dermatome test?

    <p>To determine whether there is any damage to the specific nerve root that results in abnormal or loss of sensation to the area of skin supplied by the tested nerve root</p> Signup and view all the answers

    Which dermatome innervates the medial aspect of the forearm and the 3rd, 4th, and 5th digits?

    <p>C8</p> Signup and view all the answers

    What should the candidate do before starting the dermatome test?

    <p>All of the above</p> Signup and view all the answers

    Which dermatome innervates the anterior shoulder, clavicular region, and superior scapular region?

    <p>C5</p> Signup and view all the answers

    Which dermatome corresponds to the cervical region, posterior cheek, temporal region, and inframandibular region?

    <p>C3</p> Signup and view all the answers

    What should the candidate do while performing the dermatome test?

    <p>All of the above</p> Signup and view all the answers

    The C5 dermatome is tested using a ______ hammer

    <p>reflex</p> Signup and view all the answers

    The patient needs to have their eyes closed during the test to focus on the sense of ______

    <p>touch</p> Signup and view all the answers

    The candidate must avoid falling into a predictable pattern and randomly choose the ______ or dull end of the tool

    <p>sharp</p> Signup and view all the answers

    The T8 dermatome corresponds to the anterior abdominal regions between the xiphoid process and the ______

    <p>umbilicus</p> Signup and view all the answers

    The ______ area, anterior aspect of arm to base of 1st digit

    <p>deltoid</p> Signup and view all the answers

    Candidates showing different sides of the reflex hammer. There is a dull side and a ______ side

    <p>sharp</p> Signup and view all the answers

    The C5 dermatome is the example used in performing a dermatome test.

    <p>True</p> Signup and view all the answers

    During the dermatome test, the candidate should use the sharp part of the reflex hammer to let the patient feel what sharp and hard should feel like.

    <p>False</p> Signup and view all the answers

    In a dermatome test, the candidate should avoid falling into a predictable pattern and randomly choose the sharp or dull end of the tool.

    <p>True</p> Signup and view all the answers

    The same assessment should be done on both sides of the body during a dermatome test.

    <p>True</p> Signup and view all the answers

    The T12 dermatome corresponds to the anterior abdominal region at the level of the umbilicus.

    <p>False</p> Signup and view all the answers

    In a dermatome test, the candidate must perform the test while standing up to ensure accuracy.

    <p>False</p> Signup and view all the answers

    What does a positive result in the dermatome test indicate?

    <p>A peripheral nerve root lesion of C5</p> Signup and view all the answers

    What is the purpose of asking the patient to differentiate between sharp and dull sensation in the dermatome test?

    <p>To evaluate their somatosensory function</p> Signup and view all the answers

    When conducting the dermatome test, what should the candidate do after demonstrating sharp and dull sensations?

    <p>Proceed to test on the unaffected segment of the skin</p> Signup and view all the answers

    Why does the candidate randomly select the sharp or dull end of the reflex hammer during the dermatome test?

    <p>To prevent falling into a predictable pattern</p> Signup and view all the answers

    What would a positive result in a dermatome test for C5 indicate?

    <p>Inability to differentiate between sharp and dull sensations</p> Signup and view all the answers

    What region of the body is typically assessed during a lumbar nerve root test?

    <p>Anterior leg</p> Signup and view all the answers

    What is the significance of a patient differentiating between sharp and dull sensations but experiencing pain during a dermatome test?

    <p>It should be noted, and the pressure used during testing should be checked</p> Signup and view all the answers

    What should a candidate do before proceeding with the dermatome test on the other arm?

    <p>Check if the patient has any questions or concerns</p> Signup and view all the answers

    What is the purpose of informing the patient to close their eyes during a dermatome test?

    <p>To focus on the sense of touch</p> Signup and view all the answers

    Why should the candidate avoid falling into a predictable pattern during a dermatome test?

    <p>To ensure consistency in the results</p> Signup and view all the answers

    What is the indication to consider when a patient can differentiate between sharp and dull sensations but still feels pain?

    <p>Check the pressure used during testing</p> Signup and view all the answers

    How does a candidate determine if there is any sensation loss in the area supplied by the C5 nerve root during a dermatome test?

    <p>By identifying whether there is an inability to sense touch or differentiate between sharp and dull sensations</p> Signup and view all the answers

    A positive result for a dermatome test would be the inability to differentiate between sharp and dull sensations or the inability to sense the candidate's touch, suggesting a possible nerve root lesion affecting the tested ______.

    <p>dermatome</p> Signup and view all the answers

    A negative result for a dermatome test would be the ability to differentiate between sharp and dull sensation with or without pain, suggesting no lesion affecting the nerve root corresponding to the tested ______.

    <p>dermatome</p> Signup and view all the answers

    If the patient can differentiate between sharp and dull but experiences pain, this would be considered a negative but notable result - it should also be noted by the candidate to check the pressure they are using if the patient is experiencing ______.

    <p>pain</p> Signup and view all the answers

    The purpose of a dermatome test is to identify whether there is any sensation loss to the area of skin supplied by the C5 nerve root, which is this ______.

    <p>area</p> Signup and view all the answers

    The candidate should indicate on themselves where the C5 ______ is.

    <p>dermatome</p> Signup and view all the answers

    In a dermatome test, the candidate will apply the tool on an unaffected segment of the patient's skin after testing the specified ______.

    <p>dermatome</p> Signup and view all the answers

    The candidate should show which area is to be tested. Instructions 1/2 “...I'll ask you to close your eyes and identify if you feel the sharp or the dull end of the hammer. Prior to starting, I will let you feel what sharp and dull feels like on an unaffected __________.”

    <p>area</p> Signup and view all the answers

    During the dermatome test, the candidate should use the sharp part of the reflex hammer to let the patient feel what sharp and _______ should feel like.

    <p>dull</p> Signup and view all the answers

    The candidate must avoid falling into a predictable pattern and randomly choose the _______ or dull end of the tool.

    <p>sharp</p> Signup and view all the answers

    The S1 dermatome includes the buttock, posterior thigh, lower leg, and _______.

    <p>foot</p> Signup and view all the answers

    The deltoid area and anterior aspect of the arm to the base of the first digit are innervated by which _______?

    <p>dermatome</p> Signup and view all the answers

    The T11 dermatome innervates the posterior lumbar region superior to the _______ region.

    <p>gluteal</p> Signup and view all the answers

    A positive result in a dermatome test for C5 would indicate the ability to differentiate between sharp and dull sensations, suggesting a possible nerve root lesion.

    <p>False</p> Signup and view all the answers

    If a patient experiences pain but can differentiate between sharp and dull sensations, it would be considered a notable negative result in a dermatome test.

    <p>True</p> Signup and view all the answers

    The C3 dermatome innervates the temporal region, posterior cheek, and inframandibular region.

    <p>False</p> Signup and view all the answers

    A negative result in a dermatome test for C5 would indicate the inability to differentiate between sharp and dull sensations without any pain.

    <p>False</p> Signup and view all the answers

    The T12 dermatome corresponds to the anterior abdominal region at the level of the umbilicus.

    <p>False</p> Signup and view all the answers

    Dermatomes are areas of skin innervated by multiple pairs of spinal nerves.

    <p>False</p> Signup and view all the answers

    The candidate should test the sensation of the patient's back using the reflex hammer.

    <p>False</p> Signup and view all the answers

    The candidate should ask the patient to differentiate between sharp and soft sensations when performing the dermatome test.

    <p>False</p> Signup and view all the answers

    During the dermatome test, the candidate randomly selects the sharp or dull end of the reflex hammer to apply on the patient's arm.

    <p>True</p> Signup and view all the answers

    The inability to differentiate between sharp and dull sensations on the left arm would indicate a negative test result.

    <p>False</p> Signup and view all the answers

    In a dermatome test, a positive result may indicate a peripheral nerve root lesion of C6.

    <p>False</p> Signup and view all the answers

    The candidate must demonstrate sharp and dull sensations on the patient's hand before proceeding with the test on the affected area.

    <p>True</p> Signup and view all the answers

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