Lecture 1-16 Flashcards
Cardiac
What is renal clearance?
(A volume of plasma cleared of a substance) / (time)
What is GFR?
Filtration capacity of the kidney
The clearance of what compounds reflect GFR?
Inulin
Creatinine
What is free water clearance?
CH2O
(Volume of water removed from the body) / (time)
T/F: free water clearance includes electrolytes
F
It does not include electrolytes
Increasing ADH = _________ free water clearance
decreasing
Decreasing or the absence of of ADH = _________ free water clearance
increasing
The normal systemic pressure values are:
Systolic: 120 mmHg
Diastolic: 80 mmHg
MAP: 93.33 mmHg (or about 100 mmHg)
MAP =
Diastolic + (1/3)(Systolic - diastolic)
The systemic circulation starts at the ________ and ends at the _________
Aorta
R atria
What is the MAP in the Aorta?
100 mmHg
What is the pressure is the R atria?
0 mmHg
How does being sick effect the pressure in the R atria?
Increases it
What are your highest resistant blood vessels in both the systemic and pulmonary circuit?
Arterioles
What is the blood pressure at the arterial and the venular end of the capillaries? What is Delta P?
30 mmHg
10 mmHg
20 mmHg
What is the BP at the start of the venules?
10 mmHg
The pulmonary circulation starts at the _________ and ends at the _____________
Pulmonary arteries
L atria
What is the Pulmonary artery pressure?
mPAP= 16 mmHg
systolic = 25 mmHg
diastolic = 8 mmHg
What is the pressure at the L atria?
2 mmHg
What is the Delta P of the pulmonary circulation?
14 mmHg
16 -2
What is the Delta P of the systemic circulation?
100 mmHg
100 - 0
Describe pressure upstream and downstream of the high resistance area (chokehold)
Upstream: higher
Downstream: pressure drops as it goes through high resistance area. This is to help blood flow through the area.
The closer we are to the source of the blood, the ______ the pressure
higher
Pulse pressure (PP) =
SP - DP