HESI LPN
HESI Fundamentals Study Guide
1. When admitting a 5-month-old who has vomited 9 times in the past 6 hours, what should the healthcare provider observe for signs of which overall imbalance?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Increased serum hemoglobin levels
- D. Decreased serum potassium levels
Correct answer: B
Rationale: When a 5-month-old infant vomits multiple times, there is a risk of developing metabolic alkalosis due to the loss of stomach acid. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. It is caused by the loss of hydrogen ions from the body, often through vomiting. Metabolic acidosis (choice A) is unlikely in this scenario because it is more commonly associated with conditions like renal failure or diabetic ketoacidosis. Choice C, increased serum hemoglobin levels, is not typically a direct consequence of vomiting. Choice D, decreased serum potassium levels, may occur with vomiting but is not the primary concern when a patient is vomiting excessively.
2. A healthcare professional is planning to collect a liquid stool specimen from a client for ova and parasites. Inaccurate test results may result if the healthcare professional:
- A. Refrigerates the collected specimen
- B. Collects the specimen in a sterile container
- C. Delays the collection of the specimen
- D. Uses a non-contaminated collection container
Correct answer: A
Rationale: Refrigeration can kill the ova and parasites present in the stool specimen, leading to inaccurate test results. Storing the specimen in a cold environment can disrupt the integrity of the parasites and ova, affecting the accuracy of the test. Collecting the specimen in a sterile container (Choice B) is the correct procedure to prevent external contamination. Delaying the collection of the specimen (Choice C) may affect the freshness of the sample but does not directly impact the test results. Using a non-contaminated collection container (Choice D) is essential to maintain the sample's integrity but does not relate to the risk of killing ova and parasites through refrigeration.
3. What instruction should the nurse provide for a UAP caring for a client with MRSA who has a prescription for contact precautions?
- A. Allow visitors with precautions in place
- B. Wear sterile gloves when handling the client's body fluid
- C. Have the client wear a mask whenever someone enters the room
- D. Don a gown and gloves when entering the room
Correct answer: D
Rationale: The correct instruction for a UAP caring for a client with MRSA under contact precautions is to don a gown and gloves when entering the room. Wearing a gown and gloves is necessary to prevent the transmission of MRSA. Choice A is incorrect because visitors may be allowed with proper precautions in place. Choice B is incorrect as it assumes the client has body fluid precautions, which is not specified. Choice C is incorrect as it does not address the UAP's protective measures but rather focuses on the client wearing a mask.
4. A client is grieving the loss of her partner and expresses thoughts of not seeing the point of living anymore. What action should the nurse take?
- A. Recommend that the client seek spiritual guidance
- B. Request additional support from the client's family
- C. Tell the client that this is a normal response to grief
- D. Ask the client if she plans to harm herself
Correct answer: D
Rationale: When a client expresses feelings of hopelessness or worthlessness, it is crucial for the nurse to assess for suicidal ideation. Asking the client directly if she plans to harm herself is essential to determine the level of risk and ensure appropriate interventions are implemented. Recommending spiritual guidance (Choice A) may not address the immediate safety concerns related to suicidal ideation. Requesting additional support from the client's family (Choice B) is not as direct in addressing the client's safety. While stating that the client's response is a normal part of grief (Choice C) may provide validation, it does not address the potential risk of harm to the client.
5. A client with Parkinson's disease is being discharged. Which statement by the client indicates a need for further teaching?
- A. I will take my medication at the same time every day.
- B. I will increase my fiber intake to prevent constipation.
- C. I will perform range of motion exercises to maintain mobility.
- D. I will stop taking my medication if I feel better.
Correct answer: D
Rationale: The correct answer is D. Patients with Parkinson's disease should not stop taking their medication if they feel better, as doing so can worsen symptoms. It is crucial for patients to continue their prescribed medication regimen as directed by their healthcare provider. Choices A, B, and C are all appropriate actions that promote the well-being of a client with Parkinson's disease. Choice A emphasizes medication adherence, which is vital for symptom management. Choice B addresses a common issue in Parkinson's patients and shows an understanding of the importance of dietary management. Choice C highlights the significance of physical activity in maintaining mobility, which is essential for overall quality of life in Parkinson's disease.
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