HESI LPN
HESI Practice Test for Fundamentals
1. The client is advised to take dexamethasone (Decadron) with food or milk. What is the physiological basis for this advice?
- A. Inhibits pepsin production
- B. Stimulates hydrochloric acid production
- C. Delays stomach emptying time
- D. Reduces hydrochloric acid production
Correct answer: B
Rationale: The correct answer is B: Stimulates hydrochloric acid production. Dexamethasone can stimulate the production of hydrochloric acid in the stomach, which may lead to irritation of the stomach lining. Taking dexamethasone with food or milk helps to neutralize or buffer the acid, reducing the risk of stomach irritation. Choice A is incorrect because dexamethasone does not inhibit pepsin production. Choice C is incorrect as dexamethasone does not slow stomach emptying time. Choice D is incorrect as dexamethasone does not reduce hydrochloric acid production.
2. Which statement by the mother indicates that the mother understands safety precautions with her four-month-old infant and her 4-year-old child?
- A. I secure the infant car seat in the back seat facing backwards.
- B. I place my infant in the middle of the living room floor on a blanket to play with my 4-year-old while I make supper in the kitchen.
- C. My sleeping baby looks adorable in the crib with the little buttocks up in the air while the four-year-old naps on the sofa.
- D. I have the 4-year-old hold and help feed the four-month-old a bottle in the kitchen while I make supper.
Correct answer: D
Rationale: Choice D is the correct answer because having the 4-year-old help feed the four-month-old a bottle in the kitchen while the mother makes supper shows supervision of the infant by the older child in a safe environment. This choice indicates that the mother understands safety precautions by involving the older child in a caregiving task under her supervision. Choices A, B, and C are incorrect because they involve unsafe practices such as placing the infant on the floor unsupervised, positioning the infant car seat in the front seat, and not providing direct supervision of the children during naptimes.
3. A healthcare professional is caring for a group of clients on a medical-surgical unit. Which of the following clients is at increased risk for body-image disturbances?
- A. A client who had a laparoscopic appendectomy
- B. A client who had a mastectomy
- C. A client who had a left above-the-knee amputation
- D. A client who had a cardiac catheterization
Correct answer: C
Rationale: Clients who have undergone significant visible body changes, like amputation, are at increased risk for body-image disturbances. Amputation can have a profound impact on self-image and body perception due to the visible structural alteration. While conditions like laparoscopic appendectomy, mastectomy, and cardiac catheterization may also affect body image, they are less likely to cause significant disturbances compared to visible changes like amputation.
4. A client tells the nurse, “I have to check with my partner and see if they think I am ready to go home.†The nurse responds, “How do you feel about going home today?†Which clarifying technique is the nurse using to enhance communication with the client?
- A. Pacing
- B. Reflecting
- C. Paraphrasing
- D. Restating
Correct answer: B
Rationale: Reflecting is the correct answer as it involves echoing back the client’s feelings and concerns, helping them explore their thoughts. In this scenario, the nurse mirrors the client's statement to encourage the client to delve deeper into their emotions. Pacing involves matching the rate and flow of communication, paraphrasing is restating in different words, and restating is repeating what the client said without adding new information. Therefore, choices A, C, and D are not the appropriate clarifying technique demonstrated in the situation described.
5. A client is being treated for diabetic ketoacidosis (DKA). Which laboratory value would be most concerning?
- A. Blood glucose of 350 mg/dL
- B. Serum bicarbonate of 18 mEq/L
- C. Arterial pH of 7.20
- D. Serum potassium of 5.5 mEq/L
Correct answer: C
Rationale: In a client with diabetic ketoacidosis (DKA), the most concerning laboratory value is an arterial pH of 7.20. An arterial pH of 7.20 indicates severe acidosis, which is a critical condition requiring immediate intervention. This pH level reflects a significant imbalance in the body's acid-base status, potentially leading to serious complications. High blood glucose levels (choice A) are expected in DKA but do not directly indicate the severity of acidosis. A serum bicarbonate level of 18 mEq/L (choice B) is low but not as immediately critical as a pH of 7.20. Serum potassium of 5.5 mEq/L (choice D) is elevated, which can occur in DKA due to insulin deficiency, but it is not the most concerning value in this scenario.
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