HESI LPN
CAT Exam Practice Test
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. When should the nurse conduct an Allen’s test?
- A. When obtaining pulmonary artery pressures
- B. To assess for the presence of a deep vein thrombus in the leg
- C. Just before arterial blood gases are drawn peripherally
- D. Prior to attempting a cardiac output calculation
Correct answer: C
Rationale: The correct time to conduct an Allen’s test is just before arterial blood gases are drawn peripherally. This test is performed to assess the adequacy of collateral circulation in the hand before obtaining arterial blood gases. Choice A is incorrect because an Allen’s test is not specifically done when obtaining pulmonary artery pressures. Choice B is incorrect because an Allen’s test is not used to assess deep vein thrombosis. Choice D is incorrect because an Allen’s test is not done specifically before attempting a cardiac output calculation.
3. The nurse is caring for a newborn who arrives in the nursery following a precipitous birth on the way to the hospital. A drug screen of the mother reveals the presence of cocaine metabolites. The infant has a heart rate of 175 beats/minute, cries continuously, is irritable, and is hyperreactive to stimuli. Which intervention is most important for the nurse to include in this infant’s plan of care?
- A. Initiate infant sepsis protocol
- B. Implement seizure precautions
- C. Refer to protective child services
- D. Formula feed every 3 hours
Correct answer: B
Rationale: The infant's symptoms, such as a high heart rate, continuous crying, irritability, and hyperreactivity, suggest possible withdrawal effects due to maternal cocaine use. These symptoms can lead to seizures. Therefore, the priority intervention is to implement seizure precautions to ensure the infant's safety. Initiating the infant sepsis protocol is not indicated based on the symptoms presented. Referring to protective child services is important but not the immediate priority. Formula feeding every 3 hours is a routine care measure but does not address the urgent need to prevent potential seizures.
4. The healthcare provider prescribes lidocaine (Lidoject-1) 100 mg IV push for ventricular tachycardia for an unconscious client. What is the nurse's priority intervention?
- A. Measure the client's cardiac output
- B. Assess neurological status q15 min
- C. Collect a blood specimen for serum potassium
- D. Infuse lidocaine (Lidoject-1) at 20 to 50 mg/min
Correct answer: B
Rationale: The priority intervention for the nurse is to assess the client's neurological status q15 min. This is crucial to monitor for potential side effects of lidocaine, especially its neurotoxic effects. While measuring the client's cardiac output and collecting a blood specimen for serum potassium are important assessments, assessing the neurological status is the priority when administering lidocaine. Infusing lidocaine at a specific rate should follow the initial assessment of the client's neurological status to ensure safety.
5. A female client on the mental health unit frequently asks the nurse when she can be discharged. Then, becoming more anxious, she begins to pace the hallway. What intervention should the nurse implement first?
- A. Review the current treatment plan with the client
- B. Inform the healthcare provider about the client’s behaviors
- C. Determine if the client has PRN medication for anxiety
- D. Explore the client’s reasons for wanting to be discharged
Correct answer: D
Rationale: Exploring the client’s reasons for wanting to be discharged should be the first intervention as it helps to address underlying anxieties and concerns. By understanding the client's motivations, the nurse can provide appropriate support and interventions. It can also reduce distress and improve the therapeutic relationship. Reviewing the treatment plan (Choice A) may be important but addressing the immediate distress takes precedence. Informing the healthcare provider (Choice B) can be considered later if necessary. Determining if the client has PRN medication (Choice C) is relevant, but exploring the underlying reasons for the desire to be discharged is more beneficial in this situation.
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