Question 74

Increased bleeding time

A phlebotomist should anticipate increased bleeding time for a patient who has been taking warfarin, as this medication is an anticoagulant that affects the blood's ability to clot.

A) Fasting requirement

Fasting requirements are generally related to certain lab tests such as glucose or lipid panels, but they are not specifically influenced by warfarin use. Therefore, this option is not relevant to the context of a patient on warfarin.

B) Alternate antiseptic required

While some antiseptics may be preferred for certain conditions, there is no specific requirement for an alternate antiseptic due to warfarin use. This option does not directly relate to the effects of the anticoagulant on laboratory procedures.

C) Increased bleeding time

This option is correct because warfarin is known to prolong the time it takes for blood to clot, resulting in increased bleeding time. Phlebotomists must be aware of this effect to monitor and manage potential complications during blood draws.

D) Specimen placed on ice

Placing specimens on ice is typically required for specific tests to preserve certain analytes but is not a standard requirement for patients taking warfarin. This option does not address the primary concern associated with anticoagulant therapy.

Conclusion

Increased bleeding time is the primary concern for a phlebotomist when dealing with patients on warfarin, as it directly impacts the procedure and patient safety. Other options either do not relate to the effects of warfarin or address unrelated procedural concerns. Understanding the implications of anticoagulant therapy is essential for effective patient care in phlebotomy.