Cardiology

Question 1

List the three fetal shunts normal circulation

Answer 1

1. ductus venosus
2. forman ovale
3. ductus arteriosus

Question 2

Describe how blood travels to ductus venous and how it gets to the fetal heart.

Answer 2

oxygenated blood from the placenta is carried via the umbilical vein.

As it travels past the underdeveloped liver of the fetus, the blood bypasses the liver via a blood ducted called ductus venous.

The ductus venous connects with the inferior vena cava, which mixed oxygenated with deoxygenated blood. The mixed blood then travels to the RA.

Question 3

Describe how the Forman Ovale works

Answer 3

since the fetal lungs are filled with fluid, they contain a high resistance and high pressure. As a result, the blood is rerouted and moves to the lower pressure atrium via the foramen ovale.

Question 4

Describe the role of the ductus aterious

Answer 4

Some blood moves into the right ventricle and into the pulmonary trunk. However, most of this blood is rerouted once more via the ductus arterioles, which connects the pulmonary trunk to the aorta.

Question 5

How does blood get back to the placenta

Answer 5

The deoxygenated blood is eventually returned back to the placenta via the internal iliac arteries that connect with the umbilical arteries.

Question 6

Persistent truncus ateriouss

Answer 6

1 = one trunk.
must have a VSD
Blood goes to both the aorta and pulmonary arteries

Question 7

Transposition of the great arteries

Answer 7

2=2 for two great arteries, they’re switched.
the RV pumps into the aorta.
The LV pumps into the pulmonary artery
at least one shunt to be alive

Question 8

Tricuspid atresia

Answer 8

three because of tricuspid.. or lack there of..
the tricuspid valve is a wall
must have an ASD and VSD

Question 9

Tetraology of Fallot

Answer 9

4 things.

1. Pulmonary stenosis.
2. Override of aorta
3. VSD
4. Rv Hypertrophy

Question 10

Diff dx of neonate collapsed

Answer 10

septic shock, metabolic disease, arrhythmia, myocarditis, cardiomyopathy