A patient with a history of heart failure is being treated with digoxin (Lanoxin). The nurse knows that 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
B
Feedback:
In heart failure, digoxin exerts cardiotonic or positive inotropic effect that improves the contractility and pumping ability of the heart. A positive chronotropic effect accelerates the rate of the heart, which is not recommended in a patient with heart failure. A negative inotropic effect accelerates the heart, which is not recommended in a patient with heart failure. A negative dromotropic effect changes the conductivity of muscle fiber, increasing heart rate.
You might also like to view...
Ultimately, health care will be defined and controlled by:
a. the American Medical Association b. those wielding the most political influence c. consumer activists groups, e.g., AARP d. the National Institutes of Health
The largest organ of the body is the skin, also known as the ____________________ system, or cutaneous tissue
Fill in the blank(s) with correct word
The student nurse is preparing to feed the client who has a history of dysphagia. When planning the intervention, which of the following should be taken into consideration?
A) Position the client in a semi-Fowler's position. B) Elevate the head of the bed to 60 degrees. C) Engage the client in a lively conversation during the meal. D) Maintain the client in an upright position for 1 hour after the meal.
Grounded theory has its disciplinary origin in:
A. philosophy. B. sociology. C. anthropology. D. women's studies.