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.
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A two-hour postprandial glucose test is done to check your blood sugar level two hours after you eat a meal.
This test helps to diagnose diabetes or monitor its treatment. A normal blood sugar level for this test is less than 140 mg/dL.
Choice A is wrong because fasting means not eating for at least eight hours before the test. This is done for a fasting blood glucose test, not a postprandial one.
Choice B is wrong because before breakfast means before you eat anything in the morning. This is also done for a fasting blood glucose test, not a postprandial one.
Choice D is wrong because before glucose is consumed means before you drink a sugary liquid for a glucose tolerance test. This test measures how your body handles glucose after drinking it, not after eating a meal.
Correct Answer is B
Explanation
Leave the needle in place for at least 10 seconds before removing it to trap the medication in the muscle.
The Z-track method is a technique used to administer intramuscular injections that prevent leakage of medication into the subcutaneous tissue. The nurse should pull the skin laterally before inserting the needle, inject the medication slowly, leave the needle in place for at least 10 seconds, and release the skin after withdrawing the needle.
Choice A is wrong because the total volume of the injection is not limited to 1 milliliter in the Z-track method. The Z-track method can be used to administer up to 3 milliliters of medication depending on the site and muscle mass of the client.
Choice C is wrong because the needle size and gauge depend on the site, medication, and client characteristics, not on the Z-track method. The Z-track method can be performed with different needle sizes and gauges as long as they are appropriate for intramuscular injections.
Choice D is wrong because the nurse should not administer the medication rapidly in the Z- track method.
Rapid injection can cause pain, tissue damage, and leakage of medication into the subcutaneous tissue. The nurse should inject the medication slowly and steadily in the Z-track method.
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