Which of the following should a phlebotomist anticipate for a patient who has been taking warfarin?

Rationale

Increased bleeding time.

Patients taking warfarin are at a higher risk of prolonged bleeding due to the anticoagulant properties of the medication, which inhibits vitamin K-dependent clotting factors. As a result, phlebotomists must anticipate and manage this increased bleeding time during blood draws.

A (Fasting requirement) YOUR ANSWER

A fasting requirement pertains to certain tests that require patients to abstain from food or drink for a specified period before sample collection. While fasting can be necessary for specific lab tests, it is not a direct concern related to warfarin use and does not affect bleeding time.

B (Alternate antiseptic required) YOUR ANSWER

The use of antiseptics during phlebotomy is primarily concerned with preventing infection rather than managing bleeding risks. Standard antiseptics like alcohol or chlorhexidine are appropriate for use regardless of a patient's warfarin therapy, making this choice irrelevant to the anticoagulant's effects.

C (Increased bleeding time) CORRECT

Warfarin acts as an anticoagulant, leading to a significant increase in bleeding time as it interferes with the blood's ability to clot. Phlebotomists must be cautious and prepared for potential complications due to this increased bleeding risk, making it essential to anticipate this condition during procedures.

D (Specimen placed on ice) YOUR ANSWER

Placing specimens on ice is typically required for specific tests to preserve analytes or prevent metabolic changes in the sample. This practice has no direct correlation with warfarin therapy or its effects on bleeding time, rendering it an inappropriate consideration in this context.

Conclusion

Phlebotomists must be aware that patients on warfarin experience increased bleeding time, a critical factor to consider during blood draws. While other options may pertain to different aspects of specimen collection or patient care, only the elevated bleeding time directly relates to the effects of warfarin. Understanding this relationship is vital for ensuring patient safety and effective blood sampling procedures.

Which of the following should a phlebotomist anticipate for a patient who has been taking warfarin?

Increased bleeding time.

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