A nurse is assessing a client with profuse vomiting and diarrhea. Which finding is a manifestation of hypokalemia?
Hyperactive bowel sounds
muscle weakness
Increased thirst
Cerebral edema
The Correct Answer is B
A) Hyperactive bowel sounds:
Hyperactive bowel sounds are more commonly associated with conditions like diarrhea or gastrointestinal obstruction. Hypokalemia, or low potassium levels, typically affects muscle function rather than bowel activity directly.
B) Muscle weakness:
Muscle weakness is a key manifestation of hypokalemia. Potassium is crucial for muscle function, and a deficiency can lead to significant weakness and fatigue, which is a common symptom in individuals with low potassium levels.
C) Increased thirst:
Increased thirst is more commonly associated with dehydration or hypernatremia rather than hypokalemia. While hypokalemia can cause fluid imbalances, increased thirst is not a primary symptom of low potassium levels.
D) Cerebral edema:
Cerebral edema is not typically associated with hypokalemia. It is more commonly related to conditions such as head injury, infection, or other fluid and electrolyte imbalances. Hypokalemia primarily affects muscle function and heart rhythm.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A) Blood pressure 178/90 mm Hg: Elevated blood pressure is more commonly associated with fluid overload or hypertension rather than dehydration. In dehydration, one would expect to see a decrease in blood pressure, particularly orthostatic hypotension, due to a reduction in blood volume.
B) Edema: Edema indicates fluid retention in the tissues, which is a sign of fluid overload rather than dehydration. Dehydration typically results in reduced extracellular fluid volume, leading to symptoms like dry mucous membranes and poor skin turgor, rather than swelling.
C) Bounding bilateral pulses: Bounding pulses are usually seen in conditions of increased cardiac output or fluid overload, where there is an excess of fluid volume. In contrast, dehydration often leads to weak and thready pulses due to decreased circulatory volume.
D) Increased urine specific gravity: Increased urine specific gravity is a direct indicator of dehydration. It occurs because the kidneys concentrate urine to conserve water, leading to a higher concentration of solutes in the urine. This is a reliable clinical marker of reduced hydration status, reflecting the body's attempt to maintain fluid balance by conserving water.
Correct Answer is B
Explanation
A) Hyperactive bowel sounds: Hypercalcemia typically leads to decreased gastrointestinal motility, not increased. Clients with elevated calcium levels may experience constipation, abdominal pain, or ileus due to the relaxing effect of calcium on smooth muscle. Therefore, hyperactive bowel sounds are not a common finding in hypercalcemia.
B) Increased blood clots: Hypercalcemia can promote a hypercoagulable state, increasing the risk of thromboembolic events. This occurs because high calcium levels can enhance platelet aggregation and increase the coagulability of blood. Therefore, a client with elevated serum calcium may have an increased risk of developing blood clots.
C) Hyperactive deep tendon reflexes: Hypercalcemia generally leads to reduced neuromuscular excitability, which may manifest as decreased or absent deep tendon reflexes, muscle weakness, and lethargy. Hyperactive reflexes are more commonly associated with hypocalcemia, which causes increased neuromuscular excitability.
D) Positive Chvostek’s sign: Chvostek's sign is a clinical indicator of hypocalcemia, not hypercalcemia. It involves twitching of the facial muscles in response to tapping the facial nerve and is due to increased neuromuscular excitability caused by low calcium levels. Hypercalcemia, conversely, does not typically present with a positive Chvostek’s sign.
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