Which of the following is a characteristic feature of X-linked recessive disorders?
Fathers can pass the disorder to their sons.
Carrier females rarely show symptoms.
Equal male and female prevalence.
All daughters of affected males are carriers.
The Correct Answer is D
(A) Fathers can pass the disorder to their sons: Incorrect because fathers pass the Y chromosome to sons, not the X.
(B) Carrier females rarely show symptoms: While carrier females often do not show symptoms due to having one unaffected X chromosome, it is not a defining feature.
(C) Equal male and female prevalence: Incorrect because X-linked recessive disorders affect males more frequently, as they only have one X chromosome.
(D) All daughters of affected males are carriers: Since males have only one X chromosome, they pass their X chromosome to all daughters, making them carriers.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
(A) Seizures: Severe hyponatremia (Na+ < 120 mEq/L) can cause cerebral edema, leading to increased intracranial pressure and seizures.
(B) Hyperreflexia: More common in hypernatremia or hypocalcemia, not hyponatremia.
(C) Bradycardia: Severe hyponatremia usually causes tachycardia, not bradycardia.
(D) Hypertension: Hyponatremia often leads to hypotension due to fluid shifts.
Correct Answer is D
Explanation
(A) Hydrochlorothiazide: A thiazide diuretic used for hypertension, not ICP.
(B) Spironolactone: A potassium-sparing diuretic used for heart failure, not ICP.
(C) Furosemide: A loop diuretic that reduces fluid overload but is not the first choice for ICP management.
(D) Mannitol: An osmotic diuretic that reduces brain swelling by drawing fluid out of the brain and into the bloodstream.
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