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
|
|
Term
| PCO2 IN ALVEOLI ____ THAN IN BLOOD AND ____ THAN IN TISSUES. |
|
Definition
|
|
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
|
|
Term
NORMAL VENOUS BLOOD RETURN FROM TISSUES SHOW PO2 = ____ AND
Hb SATURATION OF ____. |
|
Definition
|
|
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
|
|
Term
| O2 CAPACITY = ____ mlO2/gHb(g/100ml)= 1.34x15 = 20.10 (mlO2/1OOml BLOOD) |
|
Definition
|
|
Term
| THERE'S ALSO ____ OF O2 WHICH IS NOT ATTACHED TO Hb. THE O2 CONTENT REPRESENTS THE ____ OF O2 IN THE BLOOD SAMPLE. |
|
Definition
|
|
Term
|
Definition
| HbO2 + O2 DISSOLVED IN PLASMA |
|
|
Term
| O2 DISSOLVED IN PLASMA = ____ X ____ |
|
Definition
|
|
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
|
|
Term
T OR F:
IF PO2 INCREASES UP TO 500 mmHg, THE SATURATION CAN GO OVER 100%. |
|
Definition
|
|
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
|
|
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 |
|
|
