Acid-Base

Question 1

The nurse is caring for a patient with an acid-base imbalance. Which respiratory condition can cause respiratory alkalosis?

Answer 1

Hyperventilation

Question 2

The nurse is caring for a patient with a low PaO2 level. Which is correct regarding oxygenation and PaO2? Select all that apply.

a. ) PaO2 is the partial pressure of O2 and most important factor to determine how O2 binds with hemoglobin
b. ) PaO2 values when high indicate more O2 is able to bind with hemoglobin
c. ) PaO2 values when low indicates less O2 is able bind with hemoglobin
d. ) PaO2 levels lower than normal are associated with high levels of O2 admin
e. ) PaO2 values higher than normal indicate hypoxemia

Answer 2

A, B, C

Question 3

Which is true regarding uncompensated arterial blood gas (ABG)? Select all that apply.

a. ) In uncompensated ABG, PaCO2, or HCO3 is abnormal
b. ) In uncompensated ABG there is no indication that the renal or respiratory system has tried to correct the imbalance
c. ) In uncompensated ABG, pH is normal
d. ) In uncompensated ABG, pH is abnormal
e. ) In uncompensated ABG both PACO2 and HCO3 are abnormal

Answer 3

A, B, D

Question 4

pH <7.35
HCO3 <22
PaCO <35

Answer 4

Metabolic acidosis

Question 5

Normal HCO3 level

Answer 5

22-26

Question 6

Normal PaCO2 level

Answer 6

35-45

Question 7

A nurse checks the arterial blood gas (ABG) results of an older adult and finds that the patient’s pH is 7.34, PaCO2 is 46 mm Hg and, if compensated, then the HCO3- is 27 mEq/L. What is the nurse’s interpretation of the patient’s condition by looking at these values?

Answer 7

Respiratory acidosis

Question 8

This patient has smoked for over 40 years and has advanced lung disease. What acid-base imbalance would the nurse anticipate seeing with the arterial blood gases?

Answer 8

Respiratory acidosis

Question 9

A patient with acidosis will have what kind of electrolyte disorder?

Answer 9

Hyperkalemia

Question 10

A pt. with alkalosis will have what kind of electrolyte imbalance?

Answer 10

Hypokalemia

Question 11

A pt. has a PaO2 of 99 what kind of SaO2 will the nurse expect to see?

Answer 11

High SaO2 maybe 100

High PaO2 = High SaO2

Question 12

A pt. has a PaO2 of 65 what kind of SaO2 will the nurse expect to see?

Answer 12

Low SaO2 maybe 82

Low PaO2 = Low SaO2

Question 13

Normal PaO2 levels

Answer 13

80-95

Question 14

Normal SaO2 levels

Answer 14

95-100%

Question 15

PaO2 drives ___

Answer 15

SaO2

Question 16

PaO2 is:

Answer 16

Pressure that drives O2 molecules into RBCs to bind to Hgb