Exam 2: NUR 2392 / NUR2392 (Latest
Update) Multidimensional
Care II / MDC 2 | Questions and Verified
Answers | 100% Correct | Grade A -
Rasmussen
Acid-Base Balance (Core Focus Area)
1. A patient with COPD is brought to the ED with respiratory
depression. What acid-base imbalance is most likely?
• A. Metabolic alkalosis
• B. Respiratory acidosis
• C. Metabolic acidosis
• D. Respiratory alkalosis
Rationale: COPD causes chronic CO2 retention. Respiratory
depression leads to further CO2 buildup (hypercapnia), resulting in
respiratory acidosis .
2. The nurse observes ECG changes in a client with metabolic
acidosis. Before notifying the provider, which lab should the nurse
assess?
• A. Serum potassium
• B. Serum sodium
• C. Serum calcium
, • D. Serum magnesium
Rationale: Acidosis causes hydrogen ions to move into cells, forcing
potassium out of cells (shifting), leading to hyperkalemia. ECG changes
in acidosis are typically due to elevated potassium .
3. A patient has ABG results: pH 7.32, HCO3 20, CO2 37. How
should the nurse interpret this?
• A. Metabolic alkalosis with compensation
• B. Uncompensated metabolic acidosis
• C. Respiratory acidosis with partial compensation
• D. Respiratory alkalosis with compensation
Rationale: pH is low (acidosis - normal 7.35-7.45). HCO3 is low (20
- normal 21-28) indicating metabolic cause. CO2 is normal (35-45), so
no compensation is occurring .
4. ABG results: pH 7.30, CO2 58, HCO3 26. What is the correct
interpretation?
• A. Respiratory acidosis with full metabolic compensation
• B. Uncompensated respiratory acidosis
• C. Respiratory alkalosis with metabolic compensation
• D. Metabolic alkalosis
Rationale: pH is low (acidosis). CO2 is elevated (58 - normal 35-45)
indicating respiratory cause. HCO3 is normal, so the kidneys have not
yet compensated .
5. ABG results: pH 7.28, HCO3 30, CO2 55. How should the nurse
interpret this?
Update) Multidimensional
Care II / MDC 2 | Questions and Verified
Answers | 100% Correct | Grade A -
Rasmussen
Acid-Base Balance (Core Focus Area)
1. A patient with COPD is brought to the ED with respiratory
depression. What acid-base imbalance is most likely?
• A. Metabolic alkalosis
• B. Respiratory acidosis
• C. Metabolic acidosis
• D. Respiratory alkalosis
Rationale: COPD causes chronic CO2 retention. Respiratory
depression leads to further CO2 buildup (hypercapnia), resulting in
respiratory acidosis .
2. The nurse observes ECG changes in a client with metabolic
acidosis. Before notifying the provider, which lab should the nurse
assess?
• A. Serum potassium
• B. Serum sodium
• C. Serum calcium
, • D. Serum magnesium
Rationale: Acidosis causes hydrogen ions to move into cells, forcing
potassium out of cells (shifting), leading to hyperkalemia. ECG changes
in acidosis are typically due to elevated potassium .
3. A patient has ABG results: pH 7.32, HCO3 20, CO2 37. How
should the nurse interpret this?
• A. Metabolic alkalosis with compensation
• B. Uncompensated metabolic acidosis
• C. Respiratory acidosis with partial compensation
• D. Respiratory alkalosis with compensation
Rationale: pH is low (acidosis - normal 7.35-7.45). HCO3 is low (20
- normal 21-28) indicating metabolic cause. CO2 is normal (35-45), so
no compensation is occurring .
4. ABG results: pH 7.30, CO2 58, HCO3 26. What is the correct
interpretation?
• A. Respiratory acidosis with full metabolic compensation
• B. Uncompensated respiratory acidosis
• C. Respiratory alkalosis with metabolic compensation
• D. Metabolic alkalosis
Rationale: pH is low (acidosis). CO2 is elevated (58 - normal 35-45)
indicating respiratory cause. HCO3 is normal, so the kidneys have not
yet compensated .
5. ABG results: pH 7.28, HCO3 30, CO2 55. How should the nurse
interpret this?
