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Which is the most appropriate action when obtaining a sterile urine specimen from an indwelling urinary catheter?

Swab the collection port of the catheter with an antiseptic swab. Insert a sterile needle and aspirate 3 to 5 mL of urine into the syringe.

Immediately clamp the catheter tubing.

Return one hour later and empty 3 to 5 mL of urine from the drainage bag into a sterile specimen container.

Flush the catheter with 10 mL of sterile water.

Answer and Explanation

The Correct Answer is A

Insert a sterile needle and aspirate 3 to 5 mL of urine into the syringe. This is the best technique for obtaining a sterile urine specimen from an indwelling urinary catheter because it ensures that microorganisms in the specimen are from the urine, and not the result of contamination.

Choice B is wrong because it does not use sterile technique and it does not collect fresh urine. The urine in the drainage bag may have been sitting there for a long time and may not reflect the current condition of the patient’s urinary tract.

Choice C is wrong because it does not use sterile technique and it flushes the catheter with sterile water, which may dilute the urine and alter its composition.

Choice D is wrong because it does not use sterile technique and it collects urine from the drainage bag, which may be contaminated or stale.

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Correct Answer is B

Explanation

Potassium is 3.0.

This is because furosemide is a loop diuretic that can cause hypokalemia (low potassium levels) as a side effect. Hypokalemia can lead to muscle weakness, cramps, cardiac arrhythmias, and digoxin toxicity. The normal range for potassium is 3.5 to 5.0 mEq/L.

Choice A is wrong because sodium is 144 is within the normal range of 135 to 145 mEq/L.

Choice C is wrong because chloride is 99 is within the normal range of 98 to 106 mEq/L.

Choice D is wrong because calcium is 5.0 is within the normal range of 4.5 to 5.5 mg/dL.

A. Has had nothing by mouth (NPO) since 2300. B. Is having pain in the left lower quadrant, no BM for 24 hours. C. Received a dose of clopidogrel at 2200. D. Has an allergy.

Correct Answer is C

Explanation

The client received a dose of clopidogrel at 2200. Clopidogrel is an antiplatelet drug that increases the risk of bleeding during and after a liver biopsy. The healthcare provider should be informed of this medication and decide whether to postpone the biopsy or administer reversal agents.

Choice A is wrong because being NPO since 2300 is a standard preparation for a liver biopsy.

Choice B is wrong because pain in the left lower quadrant and constipation are not related to the liver biopsy and do not pose an immediate risk.

Choice D is wrong because having an allergy is not relevant to the liver biopsy unless it is an allergy to the local anesthetic or contrast agent used.

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Which is the most appropriate action when obtaining a sterile urine specimen from an indwelling urinary catheter?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is B

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Correct Answer is C

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