NUR 2356 MULTIDIMENSIONAL CARE I
- EXAM 3 PREPARATION QUESTIONS
AND VERIFIED ANSWERS |GRADE A+|
JUST RELEASED
1. A patient presents with a pH of 7.28, PaCO2 of 50 mmHg, and HCO3- of 25 mEq/L. Which
acid-base imbalance is the patient experiencing?
A. Metabolic Acidosis
B. Respiratory Alkalosis
C. Metabolic Alkalosis
D. Respiratory Acidosis
Answer: D
Conceptual Explanation: A pH below 7.35 indicates acidosis. A PaCO2 above 45 mmHg
indicates a respiratory cause. Since the HCO3- is within the normal range (22-26), it is
uncompensated respiratory acidosis.
2. Which clinical manifestation is a late sign of malignant hyperthermia during surgery?
A. Tachycardia
B. Muscle rigidity
C. Increased end-tidal CO2
,D. Extremely high temperature
Answer: D
Conceptual Explanation: While fever is the hallmark, it is actually a late sign. Early signs
include tachycardia, muscle rigidity (especially of the jaw), and rising end-tidal CO2 levels.
3. A nurse is caring for a patient with a potassium level of 6.2 mEq/L. Which EKG change is
most characteristic of this finding?
A. Tall, peaked T waves
B. Prominent U waves
C. ST-segment depression
D. Shortened PR interval
Answer: A
Conceptual Explanation: Hyperkalemia (K+ > 5.0) typically causes tall, peaked T waves,
widened QRS complexes, and prolonged PR intervals.
4. Which patient is at the highest risk for developing metabolic alkalosis?
A. A patient with severe diarrhea
B. A patient with prolonged nasogastric suctioning
C. A patient in diabetic ketoacidosis
D. A patient with acute renal failure
, Answer: B
Conceptual Explanation: Metabolic alkalosis is often caused by the loss of gastric acid
through vomiting or NG suctioning. Diarrhea and renal failure typically lead to metabolic
acidosis.
5. A nurse is preparing a patient for surgery. The patient states, ‘I am not sure if I want the
surgery anymore.’ What is the nurse’s priority action?
A. Explain the benefits of the procedure to the patient
B. Ask the patient to sign the consent form anyway
C. Notify the surgeon immediately
D. Document that the patient is being difficult
Answer: C
Conceptual Explanation: If a patient expresses doubt or lack of understanding regarding a
surgical procedure, the nurse must notify the surgeon, as it is the surgeon’s responsibility
to obtain informed consent.
6. What is the primary purpose of the ‘Time-Out’ in the operating room?
A. To allow the surgeon to take a break
B. To count all sponges and instruments
C. To wait for anesthesia to take effect
D. To ensure the correct patient, site, and procedure
- EXAM 3 PREPARATION QUESTIONS
AND VERIFIED ANSWERS |GRADE A+|
JUST RELEASED
1. A patient presents with a pH of 7.28, PaCO2 of 50 mmHg, and HCO3- of 25 mEq/L. Which
acid-base imbalance is the patient experiencing?
A. Metabolic Acidosis
B. Respiratory Alkalosis
C. Metabolic Alkalosis
D. Respiratory Acidosis
Answer: D
Conceptual Explanation: A pH below 7.35 indicates acidosis. A PaCO2 above 45 mmHg
indicates a respiratory cause. Since the HCO3- is within the normal range (22-26), it is
uncompensated respiratory acidosis.
2. Which clinical manifestation is a late sign of malignant hyperthermia during surgery?
A. Tachycardia
B. Muscle rigidity
C. Increased end-tidal CO2
,D. Extremely high temperature
Answer: D
Conceptual Explanation: While fever is the hallmark, it is actually a late sign. Early signs
include tachycardia, muscle rigidity (especially of the jaw), and rising end-tidal CO2 levels.
3. A nurse is caring for a patient with a potassium level of 6.2 mEq/L. Which EKG change is
most characteristic of this finding?
A. Tall, peaked T waves
B. Prominent U waves
C. ST-segment depression
D. Shortened PR interval
Answer: A
Conceptual Explanation: Hyperkalemia (K+ > 5.0) typically causes tall, peaked T waves,
widened QRS complexes, and prolonged PR intervals.
4. Which patient is at the highest risk for developing metabolic alkalosis?
A. A patient with severe diarrhea
B. A patient with prolonged nasogastric suctioning
C. A patient in diabetic ketoacidosis
D. A patient with acute renal failure
, Answer: B
Conceptual Explanation: Metabolic alkalosis is often caused by the loss of gastric acid
through vomiting or NG suctioning. Diarrhea and renal failure typically lead to metabolic
acidosis.
5. A nurse is preparing a patient for surgery. The patient states, ‘I am not sure if I want the
surgery anymore.’ What is the nurse’s priority action?
A. Explain the benefits of the procedure to the patient
B. Ask the patient to sign the consent form anyway
C. Notify the surgeon immediately
D. Document that the patient is being difficult
Answer: C
Conceptual Explanation: If a patient expresses doubt or lack of understanding regarding a
surgical procedure, the nurse must notify the surgeon, as it is the surgeon’s responsibility
to obtain informed consent.
6. What is the primary purpose of the ‘Time-Out’ in the operating room?
A. To allow the surgeon to take a break
B. To count all sponges and instruments
C. To wait for anesthesia to take effect
D. To ensure the correct patient, site, and procedure
