CHEM: CH 17 BISHOP

In the circulatory system, bicarbonate leaves the RBC and enters the plasma through an exchange mechanism with ___ to maintain electroneutrality.

Chloride

Carbonic acid concentration in blood plasma equals:

0.0307 mmol/L Hg times the pCO2 value in mmHg

The anticoagulant of choice for arterial blood gas measurements is ____ in the ___ state.

Lithium heparin ; dry

Hypoventilation can compensate for:

Nonrespiratory alkalosis

When arterial blood from a normal patient is exposed to room air:

pCO2 increases; pO2 decreases

Oxygen content in blood reflects:

pO2 value, O2Hb, O2 dissolved in blood plasma, The patient's total hemoglobin value (all of the above)

The presence of dyshemoglobins will cause a calculated % So2 result to be falsely____and a pulse oximeter % SpO2 value to be falsely___.

elevated, elevated

The kidneys compensate for respiratory alkalosis by ____ of bicarbonate and ___ excretion of NaH2PO4:

Excretion, decreased

The hemoglobin oxygen binding capacity for a blood sample that is 100% saturated with O2 and has a total hemoglobin value of 12 g/dL is approximately:

17 mL O2/ dL

The normal ratio of carbonic acid to bicarbonate in arterial blood is:

1:20

At a pH of 7.10, the H+ concentration is equal to:

80 mmol/L

A patient's arterial blood gas results are as follows pH 7.37, pCO2 75, HCO3 37. These values are consistent with:

Compensated respiratory acidosis

A patient's arterial blood gas results are as follows: pH 7.48, pCO2 54, HCO3 38. These values are consistent with:

Uncompensated nonrespiratory alkalosis