Congenital heart

Question 1

Cardiac development fairly complete by

Answer 1

8 weeks

Question 2

Ductus Venous

Answer 2

Carries oxygenated blood from the placenta though the liver into the inferior vena cava–becomes ligament in 3-7 days

Question 3

Formane ovale

Answer 3

Flapped opening in atria that allows blood to shunt right to left—closes immediately

Question 4

Ductus arterious

Answer 4

connection between aorta and pulm artery that allows blood to shunt from plum artery to the aorta–functionally closes over 10-15 hrs and structuraly over 72hrs

Question 5

What med closes a PDA

Answer 5

idomethican

Question 6

1st degree heart block

Answer 6

prolonged PR–not on time but always present

Question 7

2nd degree heart block–type 1

Answer 7

PR gets progressively longer until drops

Question 8

2nd degree heart block type 2

Answer 8

P wave on time but randomly drops

Question 9

3rd degree heart block

Answer 9

p waves not in conjuct with QRS

Question 10

Four defects of TOF are

Answer 10

1. VSD
2. Overriding aorta
3. Thickened Right Ventricle wall
4. Pulmonary stenosis

Question 11

TX of TOF Spell

Answer 11

1. Knees bent to chest
2. O2
3. sedation
4. volume for expansion
5. phelenephrin for prolonged spell-(alpha agonist)
6. Propanolol for prevntion of spells

Question 12

goal of TOF spell tx

Answer 12

decrease tone of indafibular muscle or increase SVR to stop right to left shunt

Question 13

Blue spells of TOF related to what defect?

Answer 13

Pulmonary stenosis–blood flow decreased to lungs–blood cant get oxygenated

Question 14

best indicator of chronic right to left shunt?

Answer 14

hematocrit–venous blood going into systemic circulation—body will great more red blood cells to try to have more places for oxygen and nourish body

Question 15

S/S of severe pulmonary stenosis

Answer 15

Cyanosis with activity and intolerance with activity, no symptoms at rest, increase in right ventricular pressure