Possible causes of isosexual precocious puberty in a 6-year-old girl are:
- A. McCune-Albright syndrome
- B. Congenital adrenal hyperplasia (CAH)
- C. Ovarian tumour
- D. Hypothalamic hamartomas
Correct Answer: D
Rationale: Hypothalamic hamartomas can cause precocious puberty by secreting gonadotropin-releasing hormone (GnRH) prematurely.
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What is cardiac power output (CPO) in a patient with acute anterior wall ST-elevation myocardial infarction and left ventricular failure? His mean arterial pressure was 60 mm Hg and cardiac output calculated on echo was 2.91l min−1.
- A. 0.48
- B. 0.38
- C. 0.58
- D. 0.68
Correct Answer: C
Rationale: Cardiac power output is calculated as (MAP × cardiac output) / 451. For the given values, the correct calculation gives a value of 0.58.
The nurse is providing discharge instructions to a client who is receiving prednisone (Deltasone) 5 mg PO daily for a rash due to contact with poison ivy. Which symptom should the nurse tell the client to report to the healthcare provider?
- A. Rapid weight gain
- B. Increased energy levels.
- C. Frequent headaches.
- D. Dry mouth.
Correct Answer: A
Rationale: Rapid weight gain may indicate fluid retention, a side effect of prednisone that requires medical evaluation.
While caring for a client with Amyotrophic Lateral Sclerosis (ALS), the nurse performs a neurological assessment every four hours. Which assessment finding warrants immediate intervention by the nurse?
- A. Inappropriate laughter
- B. Increasing anxiety
- C. Weakened cough effort
- D. Asymmetrical weakness
Correct Answer: C
Rationale: A weakened cough effort can lead to respiratory complications, which are life-threatening in ALS patients.
The following conditions can present in a newborn infant as a bullous eruption:
- A. Syphilis
- B. Mast cell disease
- C. Epidermolysis bullosa
- D. Phenylketonuria
Correct Answer: C
Rationale: Epidermolysis bullosa is a genetic condition causing blistering of the skin. Syphilis and mast cell disease can also cause bullous eruptions, but phenylketonuria does not.
Nurse Roy is administering total parental nutrition (TPN) through a peripheral I.V. line to a school-age child. What’s the smallest amount of glucose that’s considered safe and not caustic to small veins, while also providing adequate TPN?
- A. 5% glucose
- B. 10% glucose
- C. 15% glucose
- D. 17% glucose
Correct Answer: B
Rationale: A 10% glucose solution is safe for peripheral veins and provides adequate nutrition without causing irritation or damage.
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