HESI LPN
CAT Exam Practice
1. A 3-year-old boy was successfully toilet trained prior to his admission to the hospital for injuries sustained from a fall. His parents are very concerned that the child has regressed in his toileting behaviors. Which information should the nurse provide to the parents?
- A. Children usually resume their toileting behaviors when they leave the hospital
- B. A retraining program will need to be initiated when the child returns home
- C. Diapering will be provided since hospitalization is stressful to preschoolers
- D. A potty chair should be brought from home so he can maintain his toileting skills
Correct answer: A
Rationale: Children often regress in toileting behaviors during hospitalization due to stress and changes in routine. However, they usually resume normal behaviors once they are discharged and back in their familiar environment. Providing reassurance to the parents that the child is likely to return to his previous toileting habits after leaving the hospital can help alleviate their concerns. Choices B, C, and D are incorrect because they do not address the normal pattern of behavior regression and recovery in toileting skills associated with hospitalization.
2. A new mother asks the nurse if the newborn infant has an infection because the healthcare provider prescribed a blood test called the TORCH screen test. Which response should the nurse offer to the mother's inquiry?
- A. Rising titers identify the etiology of certain neuro-sensory birth defects
- B. The screen determines the risk for inherited anomalies in the newborn
- C. The test identifies the correct antibiotic to give the newborn for an infection
- D. Exposure to infections that can cross the placenta cause a positive antibody titer
Correct answer: D
Rationale: The TORCH screen test is used to detect infections that can affect the newborn by showing if there was exposure to these infections. Choice A is incorrect because the TORCH screen test is not specifically for identifying the etiology of neuro-sensory birth defects. Choice B is incorrect because the test does not determine the risk for inherited anomalies. Choice C is incorrect because the test is not used to identify the correct antibiotic for an infection, but rather to detect infections that may have affected the newborn.
3. A heparin infusion is prescribed for a client who weighs 220 pounds. After administering a bolus dose of 80 units/kg, the nurse calculates the infusion rate for the heparin sodium at 18 units/kg/hour. The available solution is Heparin Sodium 25,000 units in 5% Dextrose Injection 250 ml. The nurse should program the infusion pump to deliver how many ml/hour?
- A. 18
- B. 27
- C. 36
- D. 45
Correct answer: B
Rationale: To calculate the infusion rate, first, find the total dose required per hour, which is the patient's weight (220 pounds) multiplied by the prescribed rate (18 units/kg/hour). This equals 3960 units/hour. Next, determine how many ml of the solution contain 25,000 units; this is 250 ml. Divide the total dose required per hour (3960 units) by the units per ml (25,000 units/250 ml) to find how many ml are needed per hour. This results in 27 ml/hour. Therefore, the nurse should program the infusion pump to deliver 27 ml/hour. Choice A (18) is incorrect as it does not account for the concentration of the heparin solution. Choices C (36) and D (45) are incorrect as they do not reflect the accurate calculations based on the patient's weight and the heparin concentration in the solution.
4. The nurse is developing a teaching plan for a client with acute gastritis caused by drinking contaminated water. The nurse should emphasize the need to report the onset of which problem?
- A. Low-grade fever
- B. Bruising of the skin
- C. Abdominal cramping
- D. Bloody emesis
Correct answer: D
Rationale: The correct answer is D: Bloody emesis. Bloody emesis indicates potential bleeding or severe irritation, which should be reported immediately. In the context of acute gastritis, bloody emesis could indicate a more serious complication that requires urgent medical attention. Choices A, B, and C are not typically associated with acute gastritis caused by contaminated water and do not signal as critical of a condition as bloody emesis. Low-grade fever, bruising of the skin, and abdominal cramping are more commonly associated with other conditions or may be less urgent in this context.
5. The nurse is caring for a group of clients with the help of a practical nurse (PN). Which nursing actions should the nurse assign to the PN? (Select all that apply)
- A. Administer a dose of insulin per sliding scale for a client with type 2 diabetes mellitus (DM)
- B. Obtain postoperative vital signs for a client one day following unilateral knee arthroplasty
- C. Perform daily surgical dressing change for a client who had an abdominal hysterectomy
- D. Initiate patient-controlled analgesia (PCA) pumps for two clients immediately postoperative
Correct answer: B
Rationale: The correct answer is B. Obtaining postoperative vital signs for a client one day following unilateral knee arthroplasty is a task within the scope of practice for a practical nurse (PN) and contributes to the client's recovery. Administering insulin (Choice A) involves medication administration, which typically requires a higher level of nursing education. Performing daily surgical dressing changes (Choice C) after an abdominal hysterectomy involves wound care management that is usually beyond the scope of practice for a PN. Initiating patient-controlled analgesia pumps (Choice D) is a complex nursing intervention that requires specialized training and knowledge, exceeding the typical responsibilities of a PN.
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