A nurse is collecting a medication history from a client who is scheduled to have a cardiac catheterization. Which of the following medications taken by the client interacts with contrast material and places the client at risk for acute kidney injury?
Carvedilol
Nitroglycerin
Atorvastatin
Metformin
The Correct Answer is D
Choice A: Carvedilol is not a medication that interacts with contrast material and places the client at risk for acute kidney injury. Carvedilol is a beta-blocker that lowers blood pressure and heart rate by blocking the effects of adrenaline on the heart and blood vessels. Carvedilol does not affect kidney function or contrast excretion, but it can cause hypotension, bradycardia, or heart failure in some clients.
Choice B: Nitroglycerin is not a medication that interacts with contrast material and places the client at risk for acute kidney injury. Nitroglycerin is a vasodilator that relaxes the smooth muscles of the blood vessels and increases blood flow to the heart. Nitroglycerin does not affect kidney function or contrast excretion, but it can cause hypotension, headache, or flushing in some clients.
Choice C: Atorvastatin is not a medication that interacts with contrast material and places the client at risk for acute kidney injury. Atorvastatin is a statin that lowers cholesterol levels by inhibiting an enzyme that produces cholesterol in the liver. Atorvastatin does not affect kidney function or contrast excretion, but it can cause liver damage, muscle pain, or rhabdomyolysis in some clients.
Choice D: Metformin is a medication that interacts with contrast material and places the client at risk for acute kidney injury. Metformin is an oral antidiabetic drug that lowers blood glucose levels by decreasing hepatic glucose production and increasing insulin sensitivity. Metformin can accumulate in the kidneys and cause lactic acidosis, a life-threatening condition characterized by high levels of lactic acid in the blood. Contrast material can worsen kidney function and increase the risk of lactic acidosis in clients taking metformin. Therefore, metformin should be discontinued before and after the procedure as prescribed.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason: This is incorrect because the results are not within the expected reference range. The client's BUN, creatinine, and hematocrit are elevated, indicating dehydration or reduced renal perfusion.
Choice B Reason: This is correct because evaluating urine for amount and for specific gravity can help assess the client's hydration status and renal function. These actions can help assess the client's hydration status and renal function, which may be affected by nausea and vomiting. The client's BUN, creatinine, and hematocrit are elevated, indicating dehydration or reduced renal perfusion. The normal ranges for BUN are 7 to 20 mg/dL, for creatinine are
0.6 to 1.2 mg/dL, and for hematocrit are 38% to 50% for males. The nurse should monitor the urine output and specific gravity, which reflect the concentration and volume of urine. The normal range for urine output is 30 to 60 mL/hour, and for specific gravity is 1.005 to 1.030.
Choice C Reason: This is incorrect because collecting a urine specimen for culture and sensitivity is not indicated for this client. This action is used to diagnose urinary tract infections, which are not suggested by the client's symptoms or results.
Choice D Reason: This is incorrect because decreasing the IV fluid infusion rate and limiting oral fluid intake can worsen the client's dehydration and renal perfusion. The nurse should maintain adequate fluid intake and balance to prevent further complications.
Correct Answer is D
Explanation
Choice A: Decreased specific gravity is not a finding of right-sided heart failure. Specific gravity is a measure of urine concentration, which can be affected by fluid intake, dehydration, kidney function, and diuretic use. Right-sided heart failure does not directly affect urine concentration, but it can cause fluid retention and edema in the body.
Choice B: Decreased brain natriuretic peptide (BNP) is not a finding of right-sided heart failure. BNP is a hormone that is released by the heart when it is stretched or overloaded. BNP helps to lower blood pressure and reduce fluid volume by increasing urine output and dilating blood vessels. BNP levels are elevated in both left-sided and right- sided heart failure, as the heart is under increased pressure and volume.
Choice C: Increased pulmonary artery wedge pressure (PAWP) is not a finding of right-sided heart failure. PAWP is a measure of the pressure in the left atrium, which reflects the pressure in the pulmonary capillaries. PAWP is elevated in left-sided heart failure, as the blood backs up in the lungs due to impaired left ventricular function. PAWP is normal or low in right-sided heart failure, as the blood backs up in the systemic circulation due to impaired right ventricular function.
Choice D: Elevated central venous pressure (CVP) is a finding of right-sided heart failure. CVP is a measure of the pressure in the right atrium, which reflects the pressure in the systemic venous system. CVP is elevated in right-sided heart failure, as the blood backs up in the body due to impaired right ventricular function. CVP can cause jugular venous distension, hepatomegaly, splenomegaly, ascites, and peripheral edema.
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