What is the primary advantage of using low molecular weight heparins (LMWHs) over heparin?

LMWHs produce a more stable effect on coagulation; thus, fewer lab tests are needed.

LMWHs may be given by the oral route

LMWHs have a short duration of action

LMWHs possess greater anticoagulant activity

Answer and Explanation

The Correct Answer is A

A. LMWHs produce a more stable effect on coagulation; thus, fewer lab tests are needed: Correct LMWHs have a more predictable anticoagulant response compared to unfractionated heparin, resulting in a more stable effect on coagulation. Because of their predictable response, routine monitoring of coagulation parameters, such as activated partial thromboplastin time (aPTT), is typically not required with LMWH therapy, unlike with unfractionated heparin.

B. LMWHs may be given by the oral route: Incorrect. LMWHs are administered by the subcutaneous route.

C. LMWHs have a short duration of action: Incorrect. LMWHs have a longer duration of action compared to unfractionated heparin.

D. LMWHs possess greater anticoagulant activity: incorrect. LMWHs generally have less potent anticoagulant activity compared to unfractionated heparin, but their more predictable response and longer half-life make them advantageous in many clinical scenario

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Correct Answer is C

Explanation

A. Ferrous sulfate: This is an iron supplement and wouldn't be used to reverse warfarin's anticoagulant effect.

B. Prednisone: This is a steroid medication used for various inflammatory conditions and wouldn't be used to address excessive blood thinning.

C. Vitamin K: Vitamin K is the antidote for warfarin poisoning or excessive anticoagulation. By providing vitamin K, the body can resume producing clotting factors, counteracting warfarin's effect.

D. Heparin: This is another blood thinner medication. While it can be used in specific situations, it wouldn't be the first choice to reverse warfarin's effect because it adds another layer of anticoagulation, which could be risky.

A. May improve cardiac function B. May reduce pain and inflammation C. Helps promote a healthy immune system D. Reduces blood pressure and the risk for stroke

Correct Answer is D

Explanation

A. May improve cardiac function: This statement avoids claiming to diagnose, treat, cure, or prevent disease. It uses general language about supporting heart health, which is permissible.

B. May reduce pain and inflammation: Similar to option A, this statement avoids disease claims and uses general terms about pain and inflammation, which is allowed.

C. Helps promote a healthy immune system: This follows the same principle. It avoids disease claims and uses general language regarding the immune system.

D. Reduces blood pressure and the risk for stroke: This statement specifically mentions a disease (stroke) and claims to reduce its risk. Dietary supplement labels are not allowed to make disease claims. They can only make general claims about supporting bodily functions.

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What is the primary advantage of using low molecular weight heparins (LMWHs) over heparin?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is C

Explanation

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Correct Answer is D

Explanation

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