A nurse is preparing to administer digoxin 0.25 mg PO to a client. The amount available is digoxin 0.125 mg tablets. How many tablets should the nurse administer to the client?

(Round to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

White Blood Cells (WBCs): WBCs are part of the immune system and play a role in fighting infections. However, they are not directly involved in hemostasis or clot formation.

Antibodies: Antibodies are proteins produced by the immune system to recognize and neutralize foreign substances (antigens). They do not directly participate in clot formation.

Red Blood Cells (RBCs): RBCs carry oxygen and carbon dioxide but are not directly involved in clotting. They do not adhere to the vessel wall during hemostasis.

Platelets: Platelets are small cell fragments in the blood. They clump together (aggregate) at the site of injury to form a temporary plug (platelet plug). Platelets adhere to the injured vessel wall and release chemicals that initiate clotting.

A. Minutes: This is too short a timeframe for warfarin's effect. It takes longer for the body's existing clotting factors to be depleted.

B. Days: This medication works by inhibiting the production of vitamin K-dependent clotting factors in the liver. As existing clotting factors are used up and new ones aren't produced as efficiently, it takes time for the anticoagulant effect to become significant.

C. Weeks: While the full effect might take some time (around 3-5 days), several weeks is an overestimation for most patients.

D. Hours: A few hours might show some initial effect, but it's not enough time for a substantial anticoagulant effect. It usually takes at least a day or two.