HESI LPN
HESI Practice Test for Fundamentals
1. A client is receiving chemotherapy for breast cancer. Which laboratory value would be most important for the nurse to monitor?
- A. White blood cell count
- B. Hemoglobin level
- C. Serum creatinine
- D. Blood glucose level
Correct answer: A
Rationale: The correct answer is to monitor the white blood cell count. Chemotherapy can lead to neutropenia, which is a decrease in white blood cells, particularly neutrophils. Neutropenia increases the risk of infections, making it crucial to monitor the white blood cell count during chemotherapy. Monitoring hemoglobin level is important but not as critical as white blood cell count in this scenario. Serum creatinine and blood glucose levels are not directly impacted by chemotherapy for breast cancer, making them less relevant to monitor in this situation.
2. The healthcare provider is caring for a client with dehydration. Which assessment finding indicates that the client is responding to treatment?
- A. Dry mucous membranes
- B. Increased urine output
- C. Decreased heart rate
- D. Elevated blood pressure
Correct answer: B
Rationale: Increased urine output is the correct assessment finding that indicates the client is responding to treatment for dehydration. When a client is dehydrated, their urine output tends to decrease as the body tries to conserve fluids. Therefore, an increase in urine output suggests that the client's hydration status is improving. Dry mucous membranes (Choice A) are a sign of dehydration and would not indicate a positive response to treatment. Decreased heart rate (Choice C) and elevated blood pressure (Choice D) are not specific indicators of hydration status in a client with dehydration.
3. A client is being discharged home with oxygen therapy via a nasal cannula. Which of the following instructions should the nurse provide to the client and family?
- A. Wear cotton clothing to avoid static electricity.
- B. Avoid using any electrical appliances.
- C. Keep the oxygen tank away from heat sources.
- D. Use only a specific type of nasal cannula.
Correct answer: A
Rationale: The correct answer is A: Wear cotton clothing to avoid static electricity. When using oxygen therapy, static electricity can pose a hazard as it increases the risk of fire. Cotton clothing helps reduce static electricity buildup. Choice B, avoiding electrical appliances, is overly restrictive and not entirely necessary. Choice C, keeping the oxygen tank away from heat sources, is important to prevent fire hazards but is not directly related to the nasal cannula. Choice D, using only a specific type of nasal cannula, is not a universal guideline and limits flexibility in care.
4. A client has a prescription for 5 units of regular insulin and 10 units of NPH insulin to mix together and administer subcutaneously. Determine the correct order of steps for this procedure.
- A. Inject 5 units of air into the bottle of regular insulin
- B. Withdraw the correct dose of NPH insulin from the bottle
- C. Inject 10 units of air into the bottle of NPH insulin
- D. Withdraw the correct dose of regular insulin from the bottle
Correct answer: B
Rationale: The correct order of steps for this procedure is to first inject air into the NPH insulin bottle to prevent vacuum formation. After injecting air into the NPH insulin, the next step is to withdraw the correct dose of regular insulin from its bottle. This sequence ensures that the regular insulin is drawn after the NPH insulin, preventing contamination and ensuring accurate dosing. Therefore, choice B is correct. Choices A, C, and D are incorrect because air should be injected into the NPH insulin first, not the regular insulin, and the doses should be withdrawn in the appropriate order to maintain the integrity and potency of each insulin type.
5. When assessing a client's skin turgor, a nurse should:
- A. Grasp a fold of the skin on the chest under the clavicle, release it, and note the depth of the impression
- B. Check skin elasticity on the back of the hand
- C. Press on the skin over the abdomen
- D. Measure skin turgor on the lower leg
Correct answer: A
Rationale: Correct answer: When assessing a client's skin turgor, a nurse should grasp a fold of the skin on the chest under the clavicle, release it, and note the depth of the impression. This method is reliable for evaluating hydration status as it is less influenced by age-related skin changes or adipose tissue. Choice B, checking skin elasticity on the back of the hand, is not the preferred method for assessing skin turgor. Choice C, pressing on the skin over the abdomen, is not a standard location for assessing skin turgor. Choice D, measuring skin turgor on the lower leg, is not a recommended site for assessing skin turgor in clinical practice.
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