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Question 1 of 6

1. Question
The main function of the circulatory system is to
- transport oxygen to the lungs.
- transport oxygen and nutrients to the tissues of the body, and carry waste products from the tissues to the kidneys.
- cause the heart to contract.
- All of the above are functions of the circulatory system.
Question 2 of 6

2. Question
The diaphragm of the stethoscope is better able to detect ____________ frequency sounds and the bell of the stethoscope is better able to detect __________ frequency sounds.
- lower; higher
- higher; lower
- all; higher
- lower; all
Question 3 of 6

3. Question
Murmurs result from turbulent blood flow across valves. Causes include
- a high flow rate through normal or abnormal orifices.
- forward flow through an irregular or constricted orifice, or into a dilated vessel or chamber.
- backward or regurgitant flow through an incompetent valve.
- All of the above are causes of turbulent blood flow.
Question 4 of 6

4. Question
Systolic murmurs occur during ventricular contraction. They may be caused by
- blood leaking across the abnormal tricuspid or mitral valves.
- an obstruction of the ventricular outflow path.
- interventricular septal defects.
- All of the above can cause systolic murmurs.
Question 5 of 6

5. Question
Diastolic murmurs
- are heard during atrial diastole.
- are caused by regurgitation across the aortic or pulmonary valve or by stenosis of these valves.
- may be caused by mitral valve prolapse.
- are described in all of these statements.
Question 6 of 6

6. Question
The correctional nurse must know about heart sounds and murmurs because
- they may have to diagnose a patient with a murmur.
- patient education is a key component of correctional nursing care, and they must be knowledgable to provide accurate information to their patients.
- all murmurs are benign, and they need to be able to reassure their patient who has a murmur.
- All of the above are reasons that the correctional nurse must know about murmurs.

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