The nurse is preparing to administer furosemide (Lasix) to a client with severe heart failure. What lab study should be of most concern for this client while taking Lasix?
A) BNP of 100
B) Sodium level of 135
C) Hemoglobin of 12
D) Potassium level of 3.1
D
Feedback:
Severe heart failure usually requires a loop diuretic such as furosemide (Lasix). These drugs increase sodium and therefore water excretion, but they also increase potassium excretion. If a client becomes hypokalemic, digitalis toxicity is more likely. The BNP does not demonstrate a severe heart failure. Sodium level of 135 is within normal range, as is the hemoglobin level.
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