Which neurologic finding is most concerning?

The aging adult who has fine tremors of the hand

The patient with one pupil that is non-reactive to light

The newborn who extends his arms when startled

The patient who sways during the Romberg test

Answer and Explanation

The Correct Answer is B

A. The aging adult who has fine tremors of the hand: Fine tremors in the elderly are often "essential tremors" or associated with Parkinson's disease. While these require medical evaluation, they typically represent a chronic, progressive condition rather than an acute life-threatening emergency. They do not indicate immediate cerebral herniation or severe intracranial pressure.

B. The patient with one pupil that is non-reactive to light: An asymmetric, non-reactive (fixed) pupil is a clinical sign of pressure on the third cranial nerve, often due to brain herniation or a large mass. This represents a neurological emergency requiring immediate surgical or medical decompression. It is the most critical finding among the choices provided.

C. The newborn who extends his arms when startled: This describes the Moro reflex, which is a normal, symmetrical primitive reflex present at birth. It indicates a healthy, functioning neonatal nervous system and typically disappears by 4 to 6 months of age. Its presence is expected and not a cause for clinical concern.

D. The patient who sways during the Romberg test: Slight swaying can be a normal finding or indicate a mild vestibular or cerebellar impairment. While it requires further investigation into the patient's balance and proprioception, it is generally less acute than a fixed pupil. It does not carry the same immediate risk of catastrophic neurological failure.

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Correct Answer is A

Explanation

A. Hold hands back-to-back while flexing the wrists to 90 degrees for 60 seconds: This position increases pressure within the carpal tunnel and compresses the median nerve against the flexor retinaculum. The test is considered positive if the patient experiences numbness or tingling in the median nerve distribution. It is a specific diagnostic maneuver for entrapment.

B. Press the palms together for 2-3 seconds: This action does not provide the necessary mechanical compression of the median nerve required for a provocative neurological test. Brief palm pressing lacks the specific anatomical positioning needed to elicit symptoms of nerve compression. It is not a recognized maneuver for carpal tunnel.

C. Interlace the metacarpals for 2-3 seconds: Interlacing the fingers or metacarpals does not put the carpal tunnel under sufficient stress to reproduce neurological symptoms. This movement does not target the median nerve at the wrist joint. It is an irrelevant action for diagnosing upper extremity nerve entrapment syndromes.

D. Internally rotate the shoulders, pressing the hands into the back: This movement assesses the internal rotation of the glenohumeral joint and the integrity of the rotator cuff. It has no diagnostic value for conditions affecting the distal upper extremity or the median nerve. It is used for shoulder rather than wrist evaluations.

A. The mole has patches of black, brown, and red colors within it. B. The mole is 5mm in size. C. The mole is asymmetrical, with one half different in shape from the other. D. The mole has an irregular and notched border. E. The mole is uniform in color with a light brown shade throughout.

Correct Answer is ["A","C","D"]

Explanation

A. The mole has patches of black, brown, and red colors within it: The C in the ABCDE mnemonic represents Color variation. Malignant melanoma often exhibits variegated pigmentation rather than a homogenous shade. Dysplastic melanocytes produce inconsistent melanin, resulting in diverse hues across the lesion.

B. The mole is 5mm in size: The D in the rule stands for Diameter, typically concerning when > 6mm. A 5mm lesion is below the standard threshold for clinical suspicion of malignancy. It does not meet the criteria for immediate reporting based on size alone.

C. The mole is asymmetrical, with one half different in shape from the other: Asymmetry, the A in the rule, suggests uncontrolled cellular proliferation. Benign nevi are usually symmetrical because growth occurs uniformly. Disparate halves indicate irregular architectural development within the epidermis or dermis, requiring further dermatologic evaluation.

D. The mole has an irregular and notched border: Border irregularity represents the B in the assessment tool. Poorly defined, scalloped, or notched edges are characteristic of cancerous lesions. This reflects the jagged horizontal growth phase of malignant cells as they invade surrounding healthy cutaneous tissue.

E. The mole is uniform in color with a light brown shade throughout: Homogenous pigmentation is a characteristic of benign melanocytic nevi. A singular shade suggests stable melanocyte activity without the chaotic pigment production seen in malignancy. This finding does not align with the ABCDE criteria for cancerous transformation.

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Which neurologic finding is most concerning?

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The nurse suspects that the patient has carpal tunnel syndrome and wants to perform the Phalen test. How should the nurse instruct the patient?

Correct Answer is A

Explanation

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Correct Answer is ["A","C","D"]

Explanation

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