NUFT 204 Exam 3 - Answer: carry blood away from the heart 2. prim...

NUFT 204 Exam 3 (Latest -

1. primary role of arteries:

Answer: carry blood away from the heart

2. primary role of veins:

Answer: carry blood to the heart

• contain oxygen rich blood

Answer: arteries

• what produces S1?

Answer: closure of AV valves (mitral and tricuspid; *remember, they close alphabetically!mitral before tricuspid)

• what produces S2?

Answer: closure of semilunar valves (aortic and pulmonic)

• what heart "events" occur first?

Answer: left side take place a split second before right side

• where is S1 heard best?

Answer: apex (bottom of the heart; "point of maximal impulse")

• where is S2 heard best?

Answer: base (top of the heart)

• what part of the stethoscope is used to ascultate murmurs?

Answer: bell

10. 4 characteristics of heart sounds:

Answer:

• frequency
• intensity
• duration
• timing

• what heart sound occurs during systole?

Answer: S1

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• what heart sound occurs during diastole?

Answer: S2

13. location of aortic and pulmonic ascultatory areas:

Answer: 2nd intercostal space

14. location of erb's point:

Answer: 3rd intercostal space

• what ascultatory area are murmurs heard best? why?

Answer: erb's point; valves come closest to overlapping

16. location of tricuspid ascultatory area:

Answer: 4th intercostal space

17. location of mitral ascultatory area:

Answer: 5th intercostal space, mid-clavicle

• what do extra heart sounds (S3 & S4) usually correspond with?

Answer: misfiring of the heart + heart failure

• what disorders are murmurs generally related to? what is the sound caused by?

Answer: valve; thickness/speed of the blood flow

• what is thyrotoxicosis?

Answer: too much thyroid hormone circulating in blood stream

• if a murmur correlates with a carotid sound, its a murmur

Answer: systolic

22. define stenosis:

Answer: narrowing of a valve (narrowing causes turbulence)

• what is a lift or heave?

Answer: forceful cardiac contractions that cause a slight to vigorous movement of sternum/ribs

• how should a Pt. be positioned to inspect jugular veins?

Answer: 45 degree angle

• position can assist with palpating the apical pulse

Answer: left lateral

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