shunts

Question 1

fick principle

Answer 1

oxygen consumption/(Pulmonary vein oxygen content - Pulmonary artery content)

Question 2

What is one response (an increase in?) to a ventricular septal defect in an efforts to increase blood volume/TPR and thus restore MAP?

Answer 2

Angiotensin II which is stimulated by renin release (beta 1). This also stimulates aldosterone release from the adrenal medulla.

Question 3

Where is there higher than normal oxygen content in a person with an atrial septal defect?

Answer 3

Right Atrium

Question 4

Where is the ductus arteriosus?

Answer 4

opening between the pulmonary artery and the aorta

Question 5

where is there high pressure within the fetus/newborn’s vasculature and what does that cause in terms of the MEA?

Answer 5

MEA would have slight RAD because of right ventricular hypertrophy to overcome high pulmonary resistance

Question 6

which woulid be seen in a person with an intracardial shunt?

Answer 6

increase ANG II

Increased BV

Constriction of systemic arterioles

Pulm blood flow does not equal CO