Nokea
When interpreting a complete blood count (CBC) lab report, which of the following results describes the size of the RBCs?
- A. Hemoglobin
- B. Mean corpuscular volume (MCV)
- C. Red cell distribution width (RDW)
- D. Hematocrit
Correct Answer: B
Rationale: MCV measures the average size of red blood cells.
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Which cranial nerves are responsible for eye movement?
- A. CN II, III, IV
- B. CN III, IV, VI
- C. CN II, IV, VI
- D. CN III, IV, VII
Correct Answer: B
Rationale: Cranial nerves III, IV, and VI control eye movements.
Examination of the hair reveals a fine silky appearance. This finding may be seen in patients that have:
- A. Hypothyroidism
- B. Hyperthyroidism
- C. Type 2 diabetes
- D. Celiac disease
Correct Answer: B
Rationale: Hyperthyroidism can lead to fine, silky hair due to the effects of thyroid hormones.
Which immunization reduces a patient’s risk for infection with the virus that causes painful localized blistering rash?
- A. Smallpox vaccine
- B. Varicella vaccine (chicken pox)
- C. Shingles (herpes zoster) vaccine
- D. Meningococcal vaccine
Correct Answer: C
Rationale: Shingles vaccine reduces the risk of herpes zoster, which causes painful rash.
Headache warning signs that need prompt investigation include all of the following except:
- A. New onset after 50
- B. Aggravated or relieved by change of position
- C. Precipitated by Valsalva maneuver
- D. Headaches relieved with mild recurrent use of analgesics
Correct Answer: D
Rationale: Headaches relieved with mild, infrequent analgesic use typically don’t require urgent investigation.
A nurse practitioner examines the skin of an elderly patient. Which finding below is NOT a benign lesion associated with the aging process?
- A. Xerosis
- B. Cherry angiomas and senile purpura
- C. Senile keratosis and senile lentigines
- D. Dermatophytosis
Correct Answer: D
Rationale: Dermatophytosis is a fungal infection and is not a normal aging change.