While performing a blood culture venipuncture, a medical assistant cleanses a patient's skin with isopropyl alcohol. Which of the following actions is the next step?
Cleanse the site with chlorhexidine.
Prepare a wet mount slide.
Confirm the patient's blood type.
Obtain the patient's temperature.
The Correct Answer is A
A. Cleanse the site with chlorhexidine. After cleaning with isopropyl alcohol, the site should be cleansed with chlorhexidine to ensure the skin is sterile, reducing the risk of contamination in the blood culture.
B. Prepare a wet mount slide. Preparing a wet mount slide is unrelated to blood culture venipuncture and would not be the next step in this procedure.
C. Confirm the patient’s blood type. Confirming blood type is not part of the blood culture process and is not relevant at this stage.
D. Obtain the patient’s temperature. While monitoring the patient’s temperature might be necessary for diagnostic purposes, it is not the next step in performing a blood culture venipuncture.
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Correct Answer is B
Explanation
A. "Clean the perineal area from back to front.": For females, cleaning should be done from front to back to avoid contamination from fecal matter. For males, cleaning should be done around the urethral opening.
B. "Void a small amount into the toilet before voiding into the cup.": This helps to flush out any contaminants from the urethra, ensuring that the urine collected in the cup is as clean as possible.
C. "Urinate directly into the container with preservative.": Urinating directly into a container with preservative can contaminate the sample and is not recommended for a clean catch specimen.
D. "Collect all urine from start to finish.": The clean catch method specifically involves discarding the initial stream of urine and collecting the midstream to avoid contaminants.
Correct Answer is B
Explanation
A. Instruct the patient to collect the specimen and return it to the laboratory: For a valid drug screening, the specimen should be collected in the presence of a medical professional to prevent tampering.
B. Measure and record the temperature of the specimen: Measuring and recording the temperature of the urine specimen is important to ensure that the sample is fresh and has not been tampered with or substituted.
C. Pre-label the specimen container prior to collection: The container should be labeled after the specimen is collected to avoid mix-ups and to ensure accurate tracking.
D. Have the patient begin collecting the specimen mid-stream: The specimen for drug testing should typically be collected as a first-morning or a mid-stream sample to ensure accuracy, but this can vary based on specific protocols.