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. After successful resuscitation, a client is given propranolol and transferred to the Intensive Coronary Care Unit (ICCU). On admission, magnesium sulfate 4 grams IV in 250 ml D5W at one gram/hour. Which assessment findings require immediate intervention by the nurse?
- A. Dark amber urine draining via an indwelling catheter at a rate of 40 ml per hour
- B. Serum calcium of 9.0 mg/dl (2.2 mmol/L SI) and magnesium of 1.8 mg/dl or Eq/L (0.74 mmol/L SI)
- C. Sinus rhythm at 72 beats/minute and peripheral blood pressure of 99/62
- D. Respiratory rate of 10 breaths per minute
Correct answer: D
Rationale: The correct answer is D. A low respiratory rate of 10 breaths per minute is indicative of possible magnesium toxicity, which can be a serious condition requiring immediate intervention. It is a critical finding that needs prompt attention to prevent further complications. The other options are not as urgent: A - dark amber urine may indicate dehydration but does not require immediate intervention, B - serum calcium and magnesium levels are within normal limits, C - sinus rhythm and blood pressure values are also within normal range and do not require immediate action.
3. When caring for a laboring client whose contractions are occurring every 2 to 3 minutes, the nurse should document that the pump is infusing how many ml/hour? (Enter numeric value only. If rounding is required, round to the nearest whole number. Click on each chart tab for additional information. Please be sure to scroll to the bottom right corner of each tab to view all information contained in the client’s medical record.)
- A. 42
- B. 38
- C. 48
- D. 50
Correct answer: A
Rationale: By calculating the infusion rate based on the given chart information, the correct value is 42 ml/hr. This rate ensures proper fluid administration to the laboring client. Choices B (38), C (48), and D (50) are incorrect as they do not align with the calculated infusion rate needed for the client's condition, as per the chart data provided.
4. At 1130, the nurse assumes care of an adult client with diabetes mellitus who was admitted with an infected foot ulcer. After reviewing the client’s electronic health record, which priority nursing action should the nurse implement?
- A. Administer insulin based on the sliding scale
- B. Assess the appearance of the foot wound
- C. Obtain antibiotic peak and trough levels
- D. Initiate hourly measurements of urine output
Correct answer: B
Rationale: Assessing the appearance of the foot wound is the priority action in this scenario. This assessment is crucial to monitor for any signs of infection progression or complications related to the foot ulcer, especially in a client with diabetes mellitus. Administering insulin based on the sliding scale (Choice A) is important but not the immediate priority compared to assessing the foot wound. Obtaining antibiotic peak and trough levels (Choice C) is relevant but not as immediate as assessing the wound for signs of infection. Initiating hourly measurements of urine output (Choice D) is not the priority when compared to assessing the foot wound in a client with an infected foot ulcer.
5. A 10-month-old girl is admitted with a diagnosis of possible cystic fibrosis. What question should the nurse ask the parent to assist in the diagnosis of cystic fibrosis (CF)?
- A. When you kiss her, does she taste salty?
- B. Do you notice if her urine has a musty odor?
- C. Has she been drinking cow's milk in her daily diet?
- D. How often does she have a normal bowel movement?
Correct answer: A
Rationale: The correct answer is A. Salty skin is a common sign of cystic fibrosis due to high levels of sodium in sweat. Asking about the taste of the child's skin provides valuable information related to the diagnosis of CF. Choices B, C, and D are not helpful in diagnosing cystic fibrosis. A musty odor in urine is not a typical symptom of CF. Drinking cow's milk or bowel movement frequency are not specific to CF diagnosis.
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