HESI LPN
HESI Fundamentals Exam
1. A client requires gastric decompression, and a nurse is inserting an NG tube. Which action should the nurse take to verify proper placement of the tube?
- A. Assess the client for a gag reflex
- B. Measure the pH of the gastric aspirate
- C. Place the end of the NG tube in water to observe for bubbling
- D. Auscultate 2.5 cm (1 in) above the umbilicus while injecting 15 mL of sterile water
Correct answer: B
Rationale: Measuring the pH of the gastric aspirate is the most reliable method to confirm proper placement of an NG tube. Gastric fluid has an acidic pH, typically ranging from 1 to 5. Assessing the client for a gag reflex (choice A) is important for airway protection but does not confirm tube placement. Placing the NG tube in water to observe for bubbling (choice C) is incorrect and not a reliable method for verifying placement. Auscultating 2.5 cm above the umbilicus while injecting sterile water (choice D) is an outdated method and is not recommended for verifying NG tube placement.
2. A healthcare professional is caring for a client who has a new prescription for antihypertensive medication. Prior to administering the medication, the healthcare professional uses an electronic database to gather information about the medication and the effects it might have on this client. Which of the following components of critical thinking is the healthcare professional using when reviewing the medication information?
- A. Knowledge
- B. Experience
- C. Intuition
- D. Competence
Correct answer: A
Rationale: The correct answer is A: Knowledge. In this scenario, the healthcare professional is utilizing knowledge by gathering and applying information about the medication. Choice B, Experience, is not the best option as the focus is on accessing information about the medication rather than personal experience. Choice C, Intuition, refers to a gut feeling or instinct, which is not evident in the scenario. Choice D, Competence, relates more to overall ability and proficiency rather than the specific act of seeking information.
3. A client is admitted to the emergency room following an acute asthma attack. Which of the following assessments would be expected by the nurse?
- A. Diffuse expiratory wheezing
- B. Loose, productive cough
- C. No relief from inhaler
- D. Fever and chills
Correct answer: A
Rationale: During an acute asthma attack, one of the expected assessments by the nurse would be diffuse expiratory wheezing. This occurs due to narrowed airways and increased airflow velocity. Choice B, a loose productive cough, is not typically associated with an asthma attack. Choice C, no relief from inhaler, may indicate ineffective treatment but is not a direct assessment finding related to the physical examination. Choice D, fever and chills, are not typical symptoms of an asthma attack and would not be expected findings during the initial assessment of an acute asthma attack.
4. A client with chronic obstructive pulmonary disease (COPD) is being discharged with home oxygen therapy. Which statement by the client indicates a need for further teaching?
- A. I will keep my oxygen tank upright at all times.
- B. I will not use petroleum jelly to keep my nose from drying out.
- C. I will not smoke or allow others to smoke around me.
- D. I will call my doctor if I have difficulty breathing.
Correct answer: B
Rationale: The correct answer is B. Petroleum jelly is flammable and should not be used with oxygen therapy due to the risk of fire. The client should avoid using petroleum-based products around oxygen equipment. Choices A, C, and D are all appropriate statements for a client with COPD receiving home oxygen therapy. Keeping the oxygen tank upright ensures proper oxygen flow, avoiding smoking or exposure to smoke helps prevent respiratory aggravation, and knowing to seek medical help promptly for breathing difficulties is essential for managing COPD effectively.
5. 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.
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