Unlike heparin, the anticoagulant activity of warfarin can take several to reach its maximum effect.
The Correct Answer is {"dropdown-group-1":"B"}
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
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.
Correct Answer is ["A","B","C","D"]
Explanation
A. Prayer: Prayer and meditation are practices that focus on the mind-body connection and can be used for relaxation, stress reduction, and promoting inner peace. These practices are often included in CAM approaches.
B. Yoga: Yoga combines physical postures, breathing exercises, and meditation. It can improve flexibility, strength, balance, and overall well-being, making it a popular CAM therapy.
C. Massage: Massage therapy involves manipulating the soft tissues of the body to promote relaxation, pain relief, and improved circulation. It's a widely used CAM therapy.
D. Meditation: Meditation involves focusing your attention and quieting the mind. It can promote relaxation, reduce stress, and improve emotional well-being, aligning with CAM principles.
E. Ointments with a steroid base: Steroid creams are medications typically prescribed by doctors for specific skin conditions. While some natural remedies might be used topically in CAM, ointments with a steroid base wouldn't be considered a CAM therapy itself.
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