Which of the following actions should a medical assistant take to properly process a blood specimen?
Add thixotropic gel to the tube after venipuncture.
Place the tubes in the centrifuge to chill after venipuncture to separate blood cells.
Invert additive tubes multiple times after filling the tube.
Mix the anticoagulant in the tube after filling the tube.
The Correct Answer is C
A. Add thixotropic gel to the tube after venipuncture: Thixotropic gel is used in specific tubes for separating serum or plasma from blood cells and should be added during the manufacturing process, not after venipuncture.
B. Place the tubes in the centrifuge to chill after venipuncture to separate blood cells: Tubes should not be chilled before centrifugation unless specified by the test requirements. Most tubes are centrifuged at room temperature.
C. Invert additive tubes multiple times after filling the tube: Inverting additive tubes multiple times ensures proper mixing of the additive with the blood, which is crucial for accurate test results.
D. Mix the anticoagulant in the tube after filling the tube: The anticoagulant should be mixed by inverting the tube immediately after filling it, not after the fact.
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Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Obtain precertification: Obtaining precertification from the insurance company is often required before scheduling a surgical procedure to ensure that the procedure will be covered under the patient’s insurance plan.
B. Code the diagnosis and procedure: Coding the diagnosis and procedure is typically done after the procedure has been scheduled and is part of the billing process.
C. Complete the CMS-1500 claim form: The CMS-1500 claim form is used for billing and is completed after the procedure has been performed, not before scheduling.
D. Review the claim information: Reviewing claim information is part of the post-procedure billing process, not the scheduling process.
Correct Answer is A
Explanation
A. Reaching over the field: Reaching over a sterile field can contaminate it by introducing microorganisms from outside the sterile area.
B. Maintaining a 1-inch border around the edge of the sterile field: Maintaining a 1-inch border is a standard practice to ensure that the edges of the sterile field are not contaminated.
C. Holding all sterile articles at waist level: Holding sterile articles above the waist level is the recommended practice to prevent contamination. Holding them at waist level is considered acceptable as long as the items do not touch non-sterile surfaces.
D. Facing the sterile field: Facing the sterile field while working is part of maintaining sterile technique, as it ensures that you do not accidentally move toward the sterile field and contaminate it.
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