|WCU
1. A nurse is caring for a client with chronic obstructive pulmonary disease
(COPD) who is receiving oxygen at 2 L/min via nasal cannula. The client’s oxygen
saturation is 89%. Which action should the nurse take first?
A. Increase the oxygen flow rate to 4 L/min.
B. Request a prescription for a Venturi mask.
C. Assess the client’s respiratory rate and effort.
D. Notify the healthcare provider immediately.
Answer: C
Rationale: Assessment is the first step of the nursing process. For a client with COPD, an
O2 saturation of 88-92% is often acceptable, and the nurse must assess the clinical status
before changing interventions.
2. The nurse is assessing a pressure injury and finds full-thickness skin loss with
visible subcutaneous fat, but no bone or muscle is exposed. Which stage should
the nurse document?
A. Stage 2
B. Stage 3
C. Stage 4
D. Unstageable
Answer: B
Rationale: Stage 3 pressure injuries involve full-thickness skin loss with visible adipose
(fat) tissue. Bone, tendon, and muscle are not exposed, which characterizes Stage 4.
,3. A client is experiencing respiratory alkalosis due to hyperventilation. Which
arterial blood gas (ABG) result is consistent with this condition?
A. pH 7.30, PaCO2 50 mm Hg
B. pH 7.48, PaCO2 30 mm Hg
C. pH 7.32, HCO3 18 mEq/L
D. pH 7.50, HCO3 30 mEq/L
Answer: B
Rationale: Respiratory alkalosis is characterized by a high pH (greater than 7.45) and a
low PaCO2 (less than 35 mm Hg) due to the blowing off of carbon dioxide.
4. A nurse is preparing to administer an enteral feeding via a nasogastric (NG)
tube. What is the priority action to ensure patient safety?
A. Aspirate gastric contents for pH testing.
B. Check the gastric residual volume.
C. Auscultate for a ‘whoosh’ sound over the epigastrium.
D. Verify tube placement with an abdominal X-ray if newly inserted.
Answer: D
Rationale: Radiographic confirmation (X-ray) is the gold standard for verifying the
placement of a newly inserted NG tube before use.
5. A client has a potassium level of 6.2 mEq/L. Which cardiac monitor finding
should the nurse anticipate?
A. Prominent U waves
B. Tall, peaked T waves
C. ST-segment depression
D. Shortened PR interval
Answer: B
Rationale: Hyperkalemia (potassium > 5.0 mEq/L) typically manifests on an ECG as tall,
peaked T waves and widened QRS complexes.
, 6. A nurse is caring for a client with a surgical wound that has separated and has
organs protruding through the opening. What is the nurse’s immediate priority?
A. Push the organs back into the abdominal cavity.
B. Apply a dry sterile dressing tightly.
C. Place the client in a high-Fowler’s position.
D. Cover the wound with sterile towels moistened with sterile saline.
Answer: D
Rationale: Evisceration is a medical emergency. The nurse should cover the exposed
organs with sterile saline-soaked dressings to prevent drying and infection, and keep the
client in a low-Fowler’s position with knees flexed.
7. When suctioning a client with a tracheostomy, which action by the nurse is
correct?
A. Apply suction while inserting the catheter.
B. Suction for 20 to 30 seconds at a time.
C. Use a clean technique for the procedure.
D. Hyperoxygenate the client before and after the procedure.
Answer: D
Rationale: Hyperoxygenation prevents hypoxia during the procedure. Suction should only
be applied intermittently during withdrawal and for no more than 10-15 seconds.
8. A client is receiving intravenous (IV) therapy. The nurse notes the site is cool,
pale, and swollen. Which complication does the nurse suspect?
A. Phlebitis
B. Thrombosis
C. Infection
D. Infiltration
Answer: D