Rett syndrome is characterised by:
- A. Social withdrawal
- B. Self-mutilation
- C. Macrocephaly
- D. Wringing hand movements
Correct Answer: D
Rationale: Wringing hand movements are a hallmark feature of Rett syndrome, a neurodevelopmental disorder primarily affecting females.
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Which vaccines must be delayed for 11 months after the administration of gamma globulin? (Select all that apply.)
- A. Diphtheria, tetanus, and pertussis
- B. Hepatitis B
- C. Inactivated polio virus
- D. Measles, mumps, and rubella
Correct Answer: D
Rationale: Live virus vaccines (MMR and Varicella) should be delayed for 11 months after gamma globulin infusion because the passive antibodies can interfere with vaccine efficacy.
In the most common type of CAR:
- A. There is deficient 11-hydroxylase
- B. Hypertension is a feature
- C. There is an associated gene defect
- D. Transmission is autosomal dominant
Correct Answer: B
Rationale: Hypertension is a feature of congenital adrenal hyperplasia (CAH) caused by deficiencies in enzymes involved in steroidogenesis, including 11-hydroxylase.
The following are true about water excretion:
- A. It is influenced by the proximal tubule
- B. It is influenced by vasopressin
- C. It depends on erythropoietin
- D. It is influenced by the ascending limb of the loop of Henle
Correct Answer: B
Rationale: It is influenced by vasopressin: Vasopressin (ADH) regulates water reabsorption in the kidneys, primarily by acting on the collecting ducts, enhancing water retention in response to dehydration.
A nurse is preparing to administer an angiotensin-converting enzyme (ACE) inhibitor. Which drug should the nurse administer?
- A. Captopril (Capoten)
- B. Furosemide (Lasix)
- C. Spironolactone (Aldactone)
- D. Chlorothiazide (Diuril)
Correct Answer: A
Rationale: Captopril is an ACE inhibitor. Furosemide is a loop diuretic. Spironolactone blocks the action of aldosterone. Chlorothiazide works on the distal tubules.
A client with carcinoma of the lung is complaining of weakness and has a serum sodium level of 117 mEq/L. Which nursing problem should the nurse include in this client's plan of care?
- A. Altered urinary elimination
- B. Impaired gas exchange
- C. Fluid volume excess
- D. Decreased cardiac output
Correct Answer: C
Rationale: Hyponatremia (low sodium level) is often associated with fluid volume excess in clients with lung carcinoma.