A nurse is caring for a client in the emergency department with a diagnosis of renal calculi. Which of the following areas of the renal system do most renal calculi begin forming?

Bladder

Renal papilla

Ureter

Urethra

Answer and Explanation

The Correct Answer is B

Choice A reason: The bladder is not where renal calculi typically begin to form; it is where they may end up if they travel down from the kidneys.

Choice B reason: Renal calculi commonly begin forming at the renal papilla, which is part of the kidney where urine collects before it flows into the ureter.

Choice C reason: The ureter is not the typical starting point for the formation of renal calculi, though stones can travel through it.

Choice D reason: The urethra is not a common site for the formation of renal calculi; it is the duct through which urine is discharged.

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Correct Answer is D

Explanation

Choice A reason: A pH of 7.26 indicates acidosis, but an HCO3 of 24 and PaCO2 of 46 suggest a respiratory cause rather than metabolic, which is not typical for AKI.

Choice B reason: A pH of 7.49 indicates alkalosis, and with an HCO3 of 30 and PaCO2 of 40, this suggests metabolic alkalosis, which is not expected in AKI.

Choice C reason: A pH of 7.49 indicates alkalosis. An HCO3 of 24 is normal, and a PaCO2 of 30 would suggest respiratory alkalosis, not typically associated with AKI.

Choice D reason: A pH of 7.26 indicates acidosis, and with an HCO3 of 14, this suggests metabolic acidosis, which is consistent with AKI. The PaCO2 of 30 indicates a compensatory respiratory response to the metabolic acidosis. This ABG result aligns with the expected findings in a patient with AKI, where there is an accumulation of acids and a decrease in bicarbonate due to the kidneys' inability to filter and excrete hydrogen ions effectively.

A. Carvedilol B. Atorvastatin C. Nitroglycerin D. Metformin

Correct Answer is D

Explanation

Choice A reason: Carvedilol does not typically interact with contrast material to increase the risk of acute kidney injury.

Choice B reason: Atorvastatin does not typically interact with contrast material to increase the risk of acute kidney injury.

Choice C reason: Nitroglycerin does not typically interact with contrast material to increase the risk of acute kidney injury.

Choice D reason: Metformin can interact with contrast material and increase the risk of acute kidney injury, especially

in clients with pre-existing kidney problems.

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A nurse is caring for a client in the emergency department with a diagnosis of renal calculi. Which of the following areas of the renal system do most renal calculi begin forming?

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Naxlex Comprehensive Predictor Exams

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