Qualified Medication Aides (QMA) Practice Exam

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Which medication can cause an increased risk of bleeding?

Albuterol
Codeine
Warfarin
Calan

The correct answer is: Warfarin

Warfarin is an anticoagulant medication that works by inhibiting the synthesis of vitamin K-dependent clotting factors in the liver, which are essential for blood coagulation. By reducing the ability of blood to clot, warfarin significantly increases the risk of bleeding. Patients taking warfarin must be monitored closely for signs of bleeding and may require regular blood tests to ensure their International Normalized Ratio (INR) remains within a therapeutic range, as the correct dosing is vital to balance the risks of excessive bleeding with the prevention of clot formation. The other medications mentioned do not share this bleeding risk. Albuterol is a bronchodilator used primarily for asthma and does not affect coagulation. Codeine is an opioid analgesic primarily used for pain relief and does not have significant effects on bleeding. Calan, or verapamil, is a calcium channel blocker used to treat hypertension and certain cardiac conditions but is not known to increase the risk of bleeding. Thus, among the options provided, warfarin is the only medication that is closely associated with an increased risk of bleeding due to its anticoagulant properties.