Key messages

• Heparin is known to increase clotting time by affecting several coagulation factors simultaneously via potentiation of antithrombin III.

• Low-molecular-weight heparin appears to influence factor Xa activity specifically via potentiation of antithrombin III.

• The effects of the prostanoids depend on the balance between thromboxane and prostacyclin.

• Sodium citrate chelates ionized calcium necessary for the coagulation cascade.

• Warfarin produces a controlled deficiency of vitamin-K-dependent coagulation factors.

Sleep Apnea

Sleep Apnea

Have You Been Told Over And Over Again That You Snore A Lot, But You Choose To Ignore It? Have you been experiencing lack of sleep at night and find yourself waking up in the wee hours of the morning to find yourself gasping for air?

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