CAT Exam Practice Test

HESI LPN

1. An older male client is admitted to the mental health unit with a sudden onset of global disorientation and is continuously conversing with his mother, who died 50 years ago. The nurse reviews the multiple prescriptions the client is currently taking and assesses his urine specimen, which is cloudy, dark yellow, and has a foul odor. These findings suggest that this client is experiencing which condition?

A. Psychotic episode
B. Dementia
C. Delirium
D. Depression

Correct answer: C

Rationale: The correct answer is C, delirium. The sudden onset of global disorientation along with cloudy, dark yellow urine with a foul odor are indicative of delirium. Delirium is an acute condition characterized by a fluctuating disturbance in awareness and cognition. In this case, the symptoms are suggestive of an underlying physiological cause, such as infection or medication side effects. Choice A, psychotic episode, is less likely as the symptoms are more in line with delirium than a primary psychotic disorder. Choice B, dementia, is a chronic and progressive condition, not typically presenting with sudden onset disorientation. Choice D, depression, does not align with the acute cognitive changes and urine abnormalities described in the scenario.

2. While changing a client’s chest tube dressing, the nurse notes a crackling sensation when gentle pressure is applied to the skin at the insertion site. What is the best action for the nurse to take?

A. Apply a pressure dressing around the chest tube insertion site
B. Assess the client for allergies to topical cleaning agents
C. Measure the area of swelling and crackling
D. Administer an oral antihistamine per PRN protocol

Correct answer: A

Rationale: A crackling sensation indicates subcutaneous emphysema, caused by air trapped under the skin. Applying a pressure dressing around the chest tube insertion site can help manage the issue by preventing further air leakage into the tissues. Choice B is incorrect because the crackling sensation is not related to allergies. Choice C is incorrect as measuring the area does not address the underlying cause. Choice D is incorrect as administering an oral antihistamine is not indicated for subcutaneous emphysema.

3. A client is being treated for minor injuries following an automobile accident in which the only other passenger was killed. The client asks the nurse, 'Is my friend who was in the car with me ok?' What response is best for the nurse to provide?

A. I am sorry, but your friend was killed in the accident.
B. Right now you need to concentrate on getting well.
C. Was the passenger in the car your friend?
D. I think your friend is going to be all right.

Correct answer: A

Rationale: The correct answer is A: 'I am sorry, but your friend was killed in the accident.' In this situation, honesty and compassion are essential. The nurse should provide the client with truthful information, acknowledging the client's need to know the reality of the situation. Choice B is dismissive and does not address the client's inquiry directly. Choice C is a deflecting question and does not offer the direct information the client is seeking. Choice D provides false reassurance, which is not appropriate in this circumstance where the reality needs to be communicated.

4. The nurse receives change of shift report on a group of clients for the upcoming shift. A client with which condition requires the most immediate attention by the nurse?

A. Gunshot wound three hours ago with dark drainage of 2 cm on the dressing
B. Mastectomy 2 days ago with 50 ml bloody drainage in the Jackson-Pratt drain
C. Collapsed lung after a fall 8 hours ago with 100 ml blood in the chest tube collection container
D. Abdominal-perineal resection 2 days ago with no drainage on dressing and fever and chills

Correct answer: C

Rationale: A collapsed lung with significant blood accumulation requires immediate attention to prevent respiratory compromise. Option A may also require attention, but the immediate threat to airway and breathing in option C takes precedence over the others. Option B has expected drainage after a mastectomy, and option D's fever and chills, while concerning, do not pose an immediate life-threatening risk as in option C.

5. A 37-year-old client diagnosed with chronic kidney disease (CKD) is being treated for renal osteodystrophy. Which nursing diagnosis is most likely to be included in this client’s plan of care?

A. High risk for infection related to subclavian catheter
B. High risk of injury related to ambulation
C. Knowledge deficit related to a high-protein diet
D. Hygiene self-care deficit related to uremic frost

Correct answer: D

Rationale: The correct answer is D. Uremic frost is a condition in which urea and other waste products are excreted through the skin, leaving a powdery residue. This indicates poor hygiene and self-care, common issues in patients with CKD and renal osteodystrophy. Proper hygiene measures are essential to prevent complications. Choices A, B, and C are less likely to be included in the plan of care for a CKD patient with renal osteodystrophy. Choice A is more related to a vascular access issue, choice B is more related to mobility concerns, and choice C is more related to dietary education.