A nurse is reviewing laboratory findings and notes that a client's lithium level is 2.6 mEq/L. Which of the following actions should the nurse plan to take?
Restrict fluid intake to 1.5 liters/day
Administer a loop diuretic
Administer an additional dose of lithium
Prepare the client for hemodialysis
The Correct Answer is D
Explanation:
A. Restricting fluid intake is not the appropriate action for a high lithium level.
B. Administering a loop diuretic is not appropriate for treating lithium toxicity.
C. Administering an additional dose of lithium would worsen the toxicity and is contraindicated.
D. Hemodialysis is the treatment of choice for severe lithium toxicity to rapidly remove excess lithium from the bloodstream.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. ACE inhibitors primarily affect blood pressure and heart remodeling but do not directly decrease heart rate or contractility.
B. Vasodilators mainly lower blood pressure by expanding blood vessels and do not primarily affect heart rate or contractility.
C. Beta blockers decrease heart rate, contractility, and blood pressure, and are specifically used to improve survival after a heart attack by reducing the heart's workload and oxygen demand.
D. Diuretics primarily reduce blood pressure by decreasing blood volume but do not directly decrease heart rate or contractility.
Correct Answer is A
Explanation
A. Atorvastatin (Lipitor) is a statin medication that works by inhibiting the enzyme HMG-CoA reductase, which plays a key role in cholesterol synthesis in the liver, thereby lowering cholesterol levels.
B. Atorvastatin's mechanism of action is well understood; it is not accurate to say its action is not understood.
C. Atorvastatin does not bind to cholesterol; instead, it inhibits its production in the liver.
D. Atorvastatin does not directly cause the body to excrete cholesterol but rather reduces its production in the liver.
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