Shared Flashcard Set

Details

Resp II
N/A
24
Physiology
Graduate
11/16/2011

Additional Physiology Flashcards

 


 

Cards

Term
ONCE O2 DIFFUSES FROM THE ALVEOLI, IT IS TRANSPORTED BY THE ____, COMBINED WITH _____ WHICH INCEASES THIS
TRANSPORT 30 TO 100 TIMES COMPARED TO SIMPLY DISSOLVED. WHAT TECHNIQUE USES THIS MECHANISM?
Definition
BLOOD, HEMOGLOBIN
EXTRACORPOREAL GAS EXCHANGE
Term
PO2 IN ALVEOLI ____ THAN IN BLOOD AND ____ THAN IN TISSUES.
Definition
GREATER, GREATER
Term
PCO2 IN ALVEOLI ____ THAN IN BLOOD AND ____ THAN IN TISSUES.
Definition
LESS, LESS
Term
WITH EXERCISE, A PERSON WILL REQUIRE AS MUCH AS ____ THE AMOUNT OF O2 AND THE CORRESPONDING ____ IN CARDIAC OUTPUT LEADS TO A ____ IN THE TIME BLOOD REMAINS IN THE CAPILLARIES, THEREFORE BLOOD OXYGENATION SUFFERS BUT THE GREAT SAFETY FACTOR FOR O2 DIFFUSION THROUGH THE PULMONARY MEMBRANE KEEPS THE BLOOD ALMOST ____ WITH ____.
Definition
20 TIMES, INCREASE, DECREASE, SATURATED, O2
Term
WITH EXERCISE MORE CAPILLARIES ____ UP TO DIFFUSION. THE Va/Q RATIO IS ____. NORMALLY THE BLOOD IS OXYGENATED ____ AFTER ENTERING. A DECREASED TIME HAS ____ IMPACT.
Definition
OPEN, INCREASED, ALMOST IMMEDIATELY, LITTLE
Term
DUE TO THE ____, THE BLOOD PO2 IS ____ AS IT LEAVES THE LEFT VENTRICLE.
Definition
PULMONARY SHUNT, +/- 95 mmHg
Term
O2 COMBINES WITH ____ IN A REVERSIBLE WAY AND WHEN PO2 IS ____ IN ALVEOLI, O2 ____ WITH Hb BUT WHEN PO2 IS ____ IN TISSUES, O2 IS ____ FROM Hb.
Definition
HEMOGLOBIN, HIGH, BINDS, LOW,RELEASED
Term
THE ____ CURVE SHOWS A PROGRESSIVE ____ IN THE % OF Hb BOUND TO O2 AS THE PO2 ____ KNOWN AS ____ OF Hb.
Definition
O2-Hb DISSOCIATION, INCREASE, INCREASES, PERCENT SATURATION
Term
SINCE PO2 IN ARTERIES IS ____, THE USUAL O2 SATURATION OF ARTERIAL BLOOD IS ____.
Definition
+/- 95 mmHg, 97%
Term
NORMAL VENOUS BLOOD RETURN FROM TISSUES SHOW PO2 = ____ AND
Hb SATURATION OF ____.
Definition
+/- 40 mmHg, +/- 75%
Term
THE BLOOD OF A NORMAL PERSON CONTAINS ____ Hb/dl AND EACH g OF Hb CAN BIND WITH A MAXIMUM OF ____ OF O2, BUT SINCE Hb IS NOT ____, ON THE AVERAGE,
Hb IN 100 ml OF BLOOD CAN COMBINE WITH A TOTAL OF ALMOST EXACTLY ____ O2.
Definition
+/- 15g, 1.34 ml, PURE, 20 ml
Term
WHEN Hb IS 100% SATURATED WHICH IS USUALLY EXPRESSED AS ____, THE O2-Hb DISSOCIATION CURVE CAN ALSO BE EXPRESSED IN TERMS OF ____.
Definition
20 VOLUMES PERCENT, VOLUME PERCENT OF O2
Term
THE TOTAL AMOUNT OF O2 BOUND WITH Hb IN NORMAL ARTERIAL BLOOD, WHICH IS ____% SATURATED, IS ____ OF BLOOD. AFTER PASSING THROUGH CAPILLARIES, THIS AMOUNT IS DECREASED TO ± 14.4 ml/dl. (PO2 = ____ and SATURATION = ____)
Definition
97%, +/- 19.4 ml/dl, +/- 14.4 ml/dl, 40mmHg, 75%
Term
UNDER NORMAL CONDITIONS ____ O2 ARE TRANSPORTED TO THE TISSUES BY EACH 100 ml OF BLOOD. IN PRACTICAL TERMS: EACH GRAM OF Hb CAN COMBINE WITH ____ OF O2 WHEN IT'S SATURATED AT 100%.
Definition
5 ml, 1.34 ml
Term
O2 CAPACITY = ____ mlO2/gHb(g/100ml)= 1.34x15 = 20.10 (mlO2/1OOml BLOOD)
Definition
1.34
Term
THERE'S ALSO ____ OF O2 WHICH IS NOT ATTACHED TO Hb. THE O2 CONTENT REPRESENTS THE ____ OF O2 IN THE BLOOD SAMPLE.
Definition
3%, TOTAL AMOUNT
Term
O2 CONTENT = ____ + ____
Definition
HbO2 + O2 DISSOLVED IN PLASMA
Term
O2 DISSOLVED IN PLASMA = ____ X ____
Definition
PO2 X 0.003
Term
____
PO2 = --------------
____
Definition
CONCENTRATION/COEFFICIENT
Term
PLASMA CONCONCENTRATION = ____ x ____
Definition
COEFFICIENT (0.003) X PO2
Term
T OR F:
Hb WILL MAINTAIN A +/- CONSTANT PO2 IN THE TISSUES DESPITE CHANGES IN THE PO2 IN THE ALVEOLI.
Definition
T
Term
T OR F:
IF PO2 INCREASES UP TO 500 mmHg, THE SATURATION CAN GO OVER 100%.
Definition
F
Term
THE TISSUES STILL REMOVE ____ ml/dl, VENOUS PO2 FALLS TO ____ mmHg, ONLY 5 BELOW THE NORMAL ____ mmHg DESPITE AN ALVEOLAR FALL FROM 104 TO 60.
Definition
5, 35, 40
Term
WHAT ARE THE FACTORS THAT AFFECT THE O2-Hb DISSOCIATION CURVE?
Definition
1. WHEN pH INCREASES, ACIDITY INCREASES AND CURVE SHIFTS TO THE RIGHT
2. pH INCREASES, SHIFTS TO THE LEFT
3. ALSO SHIFT TO THE RIGHT: INCREASE [CO2]; INCREASE BLOOD TEMPERATURE; EXERCISE
Supporting users have an ad free experience!