ADULT CCRN/PCCN CERTIFICATION PRACTICE TEST
EXAM STUDY MATERIALS QUESTION AND ANSWERS
(VERIFIED ANSWERS)
**1. One day after posterior spinal fusion surgery, a 35-year-old woman suddenly shows restlessness,
labored breathing, and acute chest pain. Her heart rate is 122/min, she is afebrile, and her right side
breath sounds are slightly diminished. What is the most likely diagnosis?**
a) Spontaneous pneumothorax
b) Pulmonary embolus
c) Aspiration pneumonia
d) Pleural effusion
**Answer: b) Pulmonary embolus**
---
**2. To confirm the diagnosis of a pulmonary embolus in a patient post-surgery, which test is most
appropriate?**
a) Pulmonary radioisotope scan
b) Echocardiogram
c) Cardiac enzyme studies
d) Chest X-ray and arterial blood gases
**Answer: a) Pulmonary radioisotope scan**
,ESTUDY
---
**3. The nursing staff does not want to be assigned a difficult patient who displays disorderly behavior.
What is an acceptable solution?**
a) Request the family control the patient's behavior
b) Transfer the patient
c) The patient assignment should be decided by the Charge Nurse
d) Alternate the patient assignment among the nursing staff
**Answer: d) Alternate the patient assignment among the nursing staff**
---
**4. A patient who is 72 hours post-bowel obstruction repair suddenly shows shortness of breath, an
increased respiratory rate (from 22 to 45/min), and a drop in SpO2 (from 95% to 88%). Arterial blood
gases show: pH 7.40, pCO2 27, pO2 50. A chest X-ray shows a "ground-glass-like appearance," and
diffuse crackles are present. What is the most likely diagnosis?**
a) Acute respiratory distress syndrome
b) Pulmonary embolus
c) Spontaneous pneumothorax
d) Aspiration pneumonia
**Answer: a) Acute respiratory distress syndrome**
, ESTUDY
---
**5. Given the following arterial blood gas results on room air: pH 7.23, PaCO2 55, PaO2 90, HCO3 30,
what is the correct interpretation?**
a) Uncompensated metabolic acidosis
b) Uncompensated respiratory alkalosis
c) Uncompensated respiratory acidosis
d) Uncompensated metabolic alkalosis
**Answer: c) Uncompensated respiratory acidosis**
---
**6. After receiving 10 units of banked blood, how will the oxyhemoglobin dissociation curve be
affected?**
a) Shifting it to the right
b) Causing a plateau in the curve
c) Shifting it to the left
d) Causing no change in the curve
**Answer: c) Shifting it to the left**
---
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