1. Patients who have had mechanical heart valve replacement surgery need to take medication to alter the normal properties of their blood, in order to keep blood flowing and prevent blood from clotting in the mechanical heart valve. Which medication would most likely be prescribed to a patient with a mechanical valve?
A. Medication to increase blood volume.
B. Medication to decrease blood volume.
C. Medication to increase the viscosity of the blood.
D. Medication to decrease the viscosity of the blood.
2. A trauma patient enters the emergency room having undergone significant blood loss as a result of his injuries. Which of the following is likely to be a symptom this patient is experiencing?
A. Low blood pressure due to low blood volume.
B. High blood pressure due to high blood viscosity.
C. Low blood pressure due to narrowing of blood vessels.
D. High blood pressure due to increased resistance in blood vessels.
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