HESI LPN
Practice HESI Fundamentals Exam
1. A home health nurse is discussing the dangers of carbon monoxide poisoning with a client. Which of the following information should the nurse include?
- A. Carbon monoxide does not have a distinct odor.
- B. Water heaters should be inspected every 5 years.
- C. The lungs are not damaged from carbon monoxide inhalation.
- D. Carbon monoxide binds with hemoglobin in the body.
Correct answer: D
Rationale: The correct answer is D: 'Carbon monoxide binds with hemoglobin in the body.' Carbon monoxide is an odorless, colorless gas, so it does not have a distinct odor (Choice A). While regular inspection of appliances like water heaters is important for safety, it is not directly related to carbon monoxide poisoning (Choice B). Carbon monoxide primarily affects the cardiovascular system by binding with hemoglobin, reducing the blood's ability to carry oxygen, rather than causing direct lung damage (Choice C). Understanding how carbon monoxide binds with hemoglobin is crucial in recognizing the mechanism of poisoning and its potential consequences.
2. 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.
3. A client receives the influenza vaccine in a clinic. Within 15 minutes after the immunization, the client complains of itchy and watery eyes, increased anxiety, and difficulty breathing. What should be the first action in the sequence of care for this client?
- A. Maintain the airway
- B. Administer epinephrine 1:1000 as ordered
- C. Monitor for hypotension with shock
- D. Administer diphenhydramine as ordered
Correct answer: B
Rationale: In the scenario described, the client is experiencing symptoms of an anaphylactic reaction, a severe allergic response. The priority action in an anaphylactic reaction is to administer epinephrine. Epinephrine helps counteract the severe allergic response, improves breathing difficulties, and maintains airway and circulation. Administering epinephrine takes precedence to stabilize the client's condition. Options A, C, and D may be necessary in the management of anaphylaxis, but the immediate priority is to administer epinephrine to address the life-threatening symptoms.
4. A client receiving chlorpromazine HCL (Thorazine) is in psychiatric home care. During a home visit, the nurse observes the client smacking her lips alternately with grinding her teeth. The nurse recognizes this assessment finding as what?
- A. Dystonia
- B. Akathisia
- C. Bradykinesia
- D. Tardive dyskinesia
Correct answer: D
Rationale: The correct answer is D: Tardive dyskinesia. Tardive dyskinesia is a potential side effect of long-term antipsychotic use, characterized by involuntary movements like lip smacking and repetitive, purposeless movements. Choice A, dystonia, presents with sustained or repetitive muscle contractions. Choice B, akathisia, involves motor restlessness and a compelling need to be in constant motion. Choice C, bradykinesia, refers to slowness of movement typically seen in Parkinson's disease, not lip smacking and teeth grinding, which are indicative of tardive dyskinesia.
5. Upon admission to the hospital, a client presents with decreased circulation in the left leg. What is the most important initial nursing action during the assessment?
- A. Assess the client's mobility
- B. Evaluate the pedal pulses
- C. Monitor skin temperature
- D. Check for swelling
Correct answer: B
Rationale: When a client is admitted with decreased circulation in the left leg, the most critical initial nursing action is to evaluate the pedal pulses. Pedal pulses provide essential information about the circulation status in the affected leg. Assessing the client's mobility (Choice A) is important but not as crucial as evaluating pedal pulses in this scenario. Monitoring skin temperature (Choice C) and checking for swelling (Choice D) are also relevant, but they are secondary to evaluating pedal pulses since the latter directly assesses the circulation in the affected limb.
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