A nurse in a provider's office is collecting data from a client who reports dyspnea and fatigue.
The nurse determines that the client also has tachycardia and edema. Which of the following disorders should the nurse suspect?

a. Prothrombin time (PT): Warfarin affects the extrinsic pathway of the coagulation cascade, and PT is the primary diagnostic test used to monitor the therapeutic effect of warfarin. It measures

the time it takes for blood to clot.

b. Platelet count: Platelet count assesses the number of platelets in the blood and is not specifically used to monitor the effect of warfarin.

c. White blood cell count (WBC): WBC count assesses the number of white blood cells and is not specifically used to monitor the effect of warfarin.

d. Activated partial thromboplastin time (aPTT): While aPTT is a valuable test for monitoring the therapeutic effect of heparin, it is not the primary test for warfarin. Warfarin primarily affects the extrinsic pathway, and PT is more appropriate for monitoring its effects.

A. “I will notify my provider before taking any other medications.” - This statement reflects an understanding of the need to check for potential interactions with other medications, which is an appropriate response.

B. “I have made an appointment to see my dentist next week.” - Dental care is important, and

scheduling an appointment with the dentist is a responsible action. However, it does not indicate a misunderstanding about the medication.

C. “I will take this medication with meals.” - Taking phenytoin with meals is a correct instruction as it can help reduce gastrointestinal side effects.

D. "I'll be glad when my seizures stop so I can quit taking this medicine." - This statement

indicates a misunderstanding about the chronic nature of anti-seizure medications. The client needs further education on the importance of continuing the medication even if seizures stop.