A nurse is preparing a client for a kidney biopsy. Which of the following client conditions should the nurse identify as a contraindication for this diagnostic test?

Choice A reason: This statement is incorrect because, during dehydration, water does not move towards areas of lower sodium concentration.

Choice B reason: This is correct because, during dehydration, the body retains sodium, and water follows by osmosis to areas where sodium concentration is higher, which can result in elevated sodium levels.

Choice C reason: Sodium does not typically move across membranes in response to solute concentration gradients; water does.

Choice D reason: Water moves independently of sodium particles, not necessarily together, and it moves towards areas of higher solute concentration.

Choice A reason: An elevated creatinine level indicates reduced kidney function, which is often the reason a kidney biopsy is being performed in the first place. It is not a contraindication for the procedure.

Choice B reason: Urinary retention does not directly impact the ability to perform a kidney biopsy, as the procedure involves the kidneys and not the lower urinary tract where urine is stored.

Choice C reason: Flank pain is a common symptom in patients with kidney issues and is not a contraindication for a kidney biopsy. The procedure may help diagnose the cause of the ?ank pain.

Choice D reason: Bleeding tendencies are a significant contraindication for a kidney biopsy. Patients with a history of bleeding disorders or those on anticoagulant therapy are at increased risk of bleeding complications from the procedure.