A patient has an increased carbon dioxide level. Which cells combine with carbon dioxide to eliminate it from the body?
A) Leukocytes
B) Erythrocytes
C) Macrophages
D) Platelets
Question 2
A patient with a history of congestive heart failure is being treated with digoxin (Lanoxin). This medication increases the force of contractions of the heart. What effect improves the contractility of the heart?
A) Positive chronotropic effect
B) Positive inotropic effect
C) Negative inotropic effect
D) Negative dromotropic effect