Pratice Test 1 Flashcards
At what time during fetal growth is the heart fully developed?
40 days
On the 30th day the truncus normally divides. What anomaly occurs if the truncus doesn’t divide?
Truncus arterious
The sinus venous forms everything except?
Pulmonary arteries
The truncus arteriosus forms everything except ?
Pulmonary veins
What are 2 normal right to left fetal shunts in fetal circulation?
Foramen Ovale and ductus areriosus
Which left to right shunts is the last to close in the normal post-party period? And when does it close?
PFO and it closed at the end of the first week
In normal fetal circulation, which of the following has the least amount of blood flow?
PFO
Ductus arteruosus
Aorta
Pulmonary veins
Pulmonary veins
In normal fetal circulation which has the least amount of blood flow?
Pulmonary artery blood flow increases
Left atrial pressure decreases
Pulmonary resistance decreases
Forman Ovale flow decreases
Left atrial pressure decreases
The fetal ductus arteriosus closes soon after birth. What structure does it become?
Ligamentum arteriosum
During the cardiac cycle. Rank the structures activated in order
Bundle of his
Av node
Sa node
Left bundle branch block
Purkinjie fibers
Sa node
Av node
Bundle of his
left bundle branch
Purkinjie fibers
During a resting state which of the following ions is pumped out of cells of the myocardium?
Sodium
During depolarization of the myocardial cell. Which ion rushes in first and which ion rushes in later?
Sodium followed by calcium
Which ion helps slow heart muscle contraction?
Potassium
In the cardiac cell action potential, what phases are included in the absolute refractory period?
Phase 1 into phase 3
When contracting against which of the following pressures will the velocity of the muscle cell contraction be most rapid?
75mmhg
100mmhg
125mmhg
150mmhg
75mmhg
What happens to the best following a pre mature ventricular depolarization?
Beat is weaker
Beat is shorter
Best is similar
Best is stronger
Beat becomes stronger
Which of the following best describes afterload?
LV end diastolic pressure
Aortic pressure
EF
LV filling
Aortic pressure
In a patient with a VSD, which of the following sites will provide a measure of pulmonic flow?
TV
MV
AV
SVC
MV
Stimulation of the vagus nerve will result in?
Increased heart rate
Increases cardiac arrhythmias
Increased LV systolic pressure
Increased R-R interval
Increased R-R interval
During the cardiac cycle which valve event most closely follows the p wave?
AV closure
MV opening
TV closure
Pulmonic valve opening
TV closure
What hemodyanmic event follows the p wave ?
Atrial systole
Isovolumic contraction
Isovolumuc relaxation
Aortic regur
Atrial systole
What hemodyanmic event follows the R-wave on the EKG?
Atrial systole
Isovolumic contraction
Isovolumuc relaxation
Aortic regur
Isovolumertic contraction
During the cardiac cycle, which valve event most closely follows the T wave ?
AV closing
MV opening
TV closing
PV opening
AV closure
What hemodyanmic event follows the T wave on EKG?
MR
AS
Isovolumic contraction
Isovolumic relaxation
Isovolumic relaxation
True or false: the hemodymanic evaluation of aortic stenosis is performed during diastole
False
True or false: the hemodyanmic evaluation of Tricuspid stenosis is performed during diastole?
True
True or false: the hemodyanmic evaluation of pulmonic regur is performed during diastole?
True
Which flow pattern is most likely the longest ?
MS
MR
AS
PI
PI
Which of the following grades represents a murmur that is most faint ?
3 of 6
2 of 6
6 of 6
5 of 6
2 of 6
A thrill is most likely associated with which of the following murmurs?
Grade 1/6
Grade 2/6
Grade 3/6
Grade 5/6
5/6
What is a typical or normal value for hematocrit?
20%
30%
40%
80%
40%
What is the typical valve for mean left atrial pressure?
5mmhg
10mmhg
15mmhg
20mmhg
10mmhg
What is the typical valve for mean right atrial pressure?
5mmhg
10mmhg
15mmhg
20mmhg
5mmhg
What is the normal 02 sat for pulmonary artery?
100%
0%
50%
75%
75%
What is the normal 02 sat for pulmonary veins?
100%
0%
50%
75%
100%
During systole,the aortic and left ventricular pressures are quite different? What is this finding indicative of?
AR
MS
MR
AS
AS
During diastole, the right atrial pressure is much higher than right ventricular pressure. What does this indicate?
MS
AS
PS
TS
TS
What is the minimum length of time that echo records must be kept?
7 years
Normally, how much fluid is found in the pericardial sac?
10cc
40cc
70cc
100cc
40cc