HESI LPN
HESI Fundamentals Practice Questions
1. The patient has been brought to the emergency department following a motor vehicle accident. The patient is unresponsive. The driver's license states that glasses are needed to operate a motor vehicle, but no glasses were brought in with the patient. Which action should the nurse take next?
- A. Stand to the side of the patient's eye and observe the cornea.
- B. Conclude that the glasses were lost during the accident.
- C. Notify the ambulance personnel about the missing glasses.
- D. Ask the patient where the glasses are.
Correct answer: A
Rationale: In this scenario, the nurse should stand to the side of the patient's eye and observe the cornea. This action is crucial in assessing whether the patient wears contact lenses, especially in unresponsive patients. Observing the cornea can provide valuable information about the patient's eye health and potential use of contact lenses. Choices B, C, and D are incorrect. Concluding that the glasses were lost during the accident is premature without proper assessment. Notifying ambulance personnel about the missing glasses may not be the immediate priority, and asking the unresponsive patient about the glasses would not yield useful information in this situation.
2. A healthcare professional working in the emergency department is witnessing the signing of informed consent forms for the treatment of multiple clients during their shift. Which of the following signatures may the healthcare professional legally witness?
- A. A 16-year-old client who is married
- B. A 27-year-old who has schizophrenia
- C. An adoptive parent who brings in their 8-year-old child
- D. A 17-year-old mother who brings in her toddler
Correct answer: A
Rationale: The correct answer is A. A 16-year-old who is married can legally sign an informed consent form. In this case, being married at 16 may indicate legal emancipation or the ability to consent to medical treatment. Choice B is incorrect because having schizophrenia doesn't automatically imply incapacity to provide informed consent. Choice C is incorrect as an adoptive parent does not have the legal authority to provide consent for medical treatment on behalf of a child without proper documentation. Choice D is incorrect as a 17-year-old mother would generally not have the legal capacity to give consent for her toddler, as parental consent is usually required for minors.
3. Which of the following findings contraindicate the use of haloperidol (Haldol) and warrant withholding the dose?
- A. Drowsiness, lethargy, and inactivity
- B. Dry mouth, nasal congestion, and blurred vision
- C. Rash, blood dyscrasias, severe depression
- D. Hyperglycemia, weight gain, and edema
Correct answer: C
Rationale: The correct answer is C: Rash, blood dyscrasias, and severe depression are serious side effects of haloperidol that necessitate withholding the dose and prompt further evaluation. Rash can indicate an allergic reaction, blood dyscrasias are serious blood disorders that can be life-threatening, and severe depression may worsen with haloperidol use. Choices A, B, and D are incorrect because drowsiness, lethargy, inactivity, dry mouth, nasal congestion, blurred vision, hyperglycemia, weight gain, and edema are common side effects of haloperidol that may not necessarily contraindicate its use but should be monitored and managed appropriately.
4. Upon completing the admission documents, the nurse learns that the 87-year-old client does not have an advance directive. What action should the nurse take?
- A. Record the lack of advance directive on the chart
- B. Give information about advance directives
- C. Assume that the client wishes a full code
- D. Refer this issue to the unit secretary
Correct answer: B
Rationale: The correct action for the nurse to take is to give information about advance directives to the client. By providing this information, the nurse empowers the client to make an informed decision about their care preferences. Choice A is incorrect because simply recording the lack of advance directive does not address the client's need for information. Choice C is incorrect because assuming the client wishes a full code without discussing it with them is not appropriate and may not align with the client's wishes. Choice D is incorrect as the nurse should directly address the issue with the client rather than involving another staff member.
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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