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NR 572 WEEK 1 MIDTERM FOR (RESPIRATORY)
EXAM QUESTIONS WITH CORRECT VERIFIED ANSWERS
LATEST UPDATE (2025/2026) GUARANTEED PASS
1. What is pH? (ABG): The pH is the concentration of
hydrogen ions and determines the acidity or alkalinity of body
fluids.
-pH of 7.35 indicates acidosis
-pH greater than 7.45 indicates alkalosis.
2. What is PaCO2? (ABG): PaCO2 or partial pressure of
carbon dioxide shows the adequacy of the gas exchange
between the alveoli and the external environment (alveolar
ventilation)
3. What is the normal range for pH? (ABG): The normal
ABG level for pH is 7.35 to 7.45.
4. What is the normal range for PaCO2? (ABG): For PaCO2,
the normal range is 35 to 45 mmHg (respiratory determinant).
NR 572
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5. What is PaO2? (ABG): PaO2 or partial pressure of oxygen
or PAO2 indicates the amount of oxygen available to bind with
hemoglobin.
The pH plays a role in the combining power of oxygen with
hemoglobin: a low pH means there is less oxygen in the
hemoglobin.
For PaO2, the normal range is 75 to 100 mmHg
6. What is HCO3? (ABG): HCO3 or bicarbonate ion is an
alkaline substance that comprises over half of the total buffer
base in the blood.
A deficit of bicarbonate and other bases indicates metabolic
acidosis.
When there is an increase in bicarbonates present, then
metabolic alkalosis results.
7. What is the normal range for HCO3? (ABG): the normal
range is 22 to 26 mEq/L (metabolic determinant)
NR 572
NR
NR 572 WEEK 1 MIDTERM FOR (RESPIRATORY)
EXAM QUESTIONS WITH CORRECT VERIFIED ANSWERS
LATEST UPDATE (2025/2026) GUARANTEED PASS
1. What is pH? (ABG): The pH is the concentration of
hydrogen ions and determines the acidity or alkalinity of body
fluids.
-pH of 7.35 indicates acidosis
-pH greater than 7.45 indicates alkalosis.
2. What is PaCO2? (ABG): PaCO2 or partial pressure of
carbon dioxide shows the adequacy of the gas exchange
between the alveoli and the external environment (alveolar
ventilation)
3. What is the normal range for pH? (ABG): The normal
ABG level for pH is 7.35 to 7.45.
4. What is the normal range for PaCO2? (ABG): For PaCO2,
the normal range is 35 to 45 mmHg (respiratory determinant).
NR 572
, 2
NR
5. What is PaO2? (ABG): PaO2 or partial pressure of oxygen
or PAO2 indicates the amount of oxygen available to bind with
hemoglobin.
The pH plays a role in the combining power of oxygen with
hemoglobin: a low pH means there is less oxygen in the
hemoglobin.
For PaO2, the normal range is 75 to 100 mmHg
6. What is HCO3? (ABG): HCO3 or bicarbonate ion is an
alkaline substance that comprises over half of the total buffer
base in the blood.
A deficit of bicarbonate and other bases indicates metabolic
acidosis.
When there is an increase in bicarbonates present, then
metabolic alkalosis results.
7. What is the normal range for HCO3? (ABG): the normal
range is 22 to 26 mEq/L (metabolic determinant)
NR 572
