A patient with a serum sodium level of 120 mEq/L is at risk for which condition? (Normal Sodium: 135-145 mEq/L)
Seizures
Hyperreflexia
Bradycardia
Hypertension
The Correct Answer is A
(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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
(A) Hypertonic Fluids: Would worsen hypernatremia by increasing sodium levels.
(B) Isotonic Fluids: These help with volume depletion but do not effectively reduce sodium levels.
(C) Colloid Infusions: Used for hypovolemia but do not correct sodium imbalances.
(D) Hypotonic Fluids: A sodium level of 155 mEq/L (hypernatremia) indicates dehydration, and hypotonic fluids (e.g., 0.45% NaCl) help shift water into cells and lower sodium levels.
Correct Answer is D
Explanation
(A) X-linked recessive: Requires two mutated genes in females or one in males (e.g., hemophilia, Duchenne muscular dystrophy).
(B) Mitochondrial: Inherited only from the mother, affects energy production.
(C) Autosomal recessive: Requires two copies of a mutated gene (one from each parent) to cause disease (e.g., cystic fibrosis, sickle cell anemia).
(D) Autosomal dominant: A single copy of a mutated gene from one parent is enough to cause a disorder. Examples include Huntington’s disease and Marfan syndrome.
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