NURS190 / NURS 190 Quiz 4 –
Physical Assessment | WCU
(2026/2027 Updated Q&A) Verified
100% Correct Answers | Grade A
What size is the heart?
length: 5"
diameter: 3.5"
thickness: 2.5"
female heart is smaller and less in weight compared to male
What technique is used to measure heart rate?
auscultation & palpation
What is another name for PMI (point of maximal impulse)?
heartbeat
What way does the blood flow in a healthy individual?
unidirectionally
What sound is heard when blood back flows?
regurgitation/cardiac murmur
What is precordium?
area of the chest where the heart sounds are assessed
What is pericardium?
a double layered sac that encloses the heart
When cardiac valves are pathologic...
forward back flow is restricted resulting in regurgitation/cardiac murmurs
S1 (LUB)
1st heartbeat heard due to the closure of the AV valves when ventricles are filled
(loudest at the apex of the heart, heard better in tricuspid/mitral area)
, S2 (DUB)
2nd heartbeat heard due to the closure of the SEMILUNAR valves when ventricles empty blood
to the pulmonic area and aorta
(heard loudest at the base [top] of heart)
S3
vibration when AV valves open and blood goes to the ventricles (ventricular gallop)
(may be heard in HEALTHY children & adults, pregnant woman: 3rd trimester)
S4
atrial contraction and ejection of blood to the ventricles in late diastole (atrial gallop)
(may be heard in HEALTHY children WELL FIT adult, & HEALTHY elderly)
Interatrial septum
separates the left and right atrium
Interventricular septum
separates the left and right ventricles
Heart sounds
1+ faint
2+ normal
3+ brisk
4+ bounding
What are the cardiac murmurs associated with?
tricuspid regurgitation tricuspid stenosis
mitral regurgitation
mitral stenosis
aortic regurgitation
How are cardiac murmurs graded?
1/6 barely audible
6/6 loudest sound, thrills can be seen
What are the major risk factors of heart disease?
hypertension
smoking
diabetes
obesity
high cholesterol