A nurse is planning to administer mannitol to a client who has heart failure and pulmonary edema. Which of the following actions should the nurse take before giving the medication?
Check the urine output.
Check the blood pressure.
Check the blood glucose.
Check the oxygen saturation.
The Correct Answer is A
Mannitol is an osmotic diuretic that increases urine output and decreases intracranial pressure and intraocular pressure. The nurse should check the urine output before giving the medication to ensure adequate renal function and prevent fluid overload and electrolyte imbalance. The normal urine output is 0.5 to 1 mL/kg/hr.
Choice B is wrong because checking the blood pressure is not specific to mannitol administration. Mannitol can cause hypotension or hypertension depending on the fluid status of the client, but this is not the priority action before giving the medication.
Choice C is wrong because checking the blood glucose is not relevant to mannitol administration. Mannitol does not affect blood glucose levels.
Choice D is wrong because checking the oxygen saturation is not related to mannitol administration. Mannitol does not affect oxygen saturation levels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The nurse should monitor the client’s serum potassium level closely because furosemide is a loop diuretic that can cause hypokalemia, which increases the risk of cardiac arrhythmias and digitalis toxicity. The nurse should also monitor the client’s fluid status, blood pressure, and renal function.
Choice B is wrong because Serum calcium is wrong because furosemide does not affect calcium levels significantly. Calcium levels are more likely to be affected by thiazide diuretics, which can cause hypercalcemia.
Choice C is wrong because Serum albumin is wrong because furosemide does not affect albumin levels significantly. Albumin levels are more likely to be affected by liver disease, malnutrition, or nephrotic syndrome.
Choice D is wrong because Serum glucose is wrong because furosemide does not affect glucose levels significantly. Glucose levels are more likely to be affected by diabetes mellitus, corticosteroids, or stress.
Normal ranges for the laboratory values are:
• Serum potassium: 3.5-5.0 mEq/L
• Serum calcium: 8.5-10.5 mg/dL
• Serum albumin: 3.5-5.0 g/dL
• Serum glucose: 70-110 mg/dL
Correct Answer is E
Explanation
Adrenergic drugs.These are drugs that stimulate the sympathetic nervous system by mimicking or enhancing the effects of epinephrine and norepinephrine, the chemical messengers that activate adrenergic receptors.Adrenergic drugs can increase blood pressure, heart rate, cardiac output, vascular tone, and renin release by acting on different types of adrenergic receptors.
Choice A is wrong because beta blockers are drugs that inhibit the sympathetic nervous system by blocking the beta adrenergic receptors, which are responsible for increasing heart rate and contractility. Beta blockers can lower blood pressure and reduce cardiac workload.
Choice B is wrong because calcium channel blockers are drugs that inhibit the movement of calcium ions across the cell membrane of smooth muscle cells, which are found in blood vessels and the heart.Calcium channel blockers can relax blood vessels and lower blood pressure, as well as reduce heart rate and contractility.
Choice C is wrong because angiotensin II receptor blockers (ARBs) are drugs that block the action of angiotensin II, a hormone that causes vasoconstriction and stimulates the release of aldosterone, which increases sodium and water retention.
ARBs can lower blood pressure by dilating blood
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