HESI LPN
Adult Health 1 Exam 1
1. Which of the following are key parameters that produce blood pressure? (Select ONE that does not apply)
- A. Heart rate
- B. Stroke volume
- C. Peripheral resistance
- D. Neuroendocrine hormones
Correct answer: D
Rationale: Heart rate, stroke volume, and peripheral resistance are indeed key parameters that directly influence blood pressure. Heart rate refers to the number of times the heart beats per minute, affecting how much blood is pumped. Stroke volume is the amount of blood pumped by the heart in one contraction. Peripheral resistance is the resistance of the arteries to blood flow, impacting the pressure needed to push blood through. Neuroendocrine hormones, while they can indirectly influence blood pressure regulation by affecting factors like blood volume and vascular tone, are not direct final parameters that produce blood pressure.
2. A client with a history of peptic ulcer disease (PUD) is prescribed omeprazole (Prilosec). What is the primary action of this medication?
- A. Neutralizes stomach acid
- B. Reduces gastric acid production
- C. Forms a protective barrier over ulcers
- D. Increases gastric mucus production
Correct answer: B
Rationale: The correct answer is B: Reduces gastric acid production. Omeprazole is a proton pump inhibitor that works by reducing gastric acid production, thereby helping to heal ulcers. While neutralizing stomach acid is associated with antacids, forming a protective barrier over ulcers is more characteristic of medications like sucralfate. The action described in choice D, increasing gastric mucus production, is not the primary mechanism of action of omeprazole in treating peptic ulcer disease.
3. A 4-year-old with acute lymphocytic leukemia (ALL) is receiving a chemotherapy protocol that includes methotrexate, an antimetabolite. Which information should the nurse provide the parents about caring for their child?
- A. Use sunblock or protective clothing when outdoors.
- B. Include the child in regular outings with the family.
- C. Obtain any childhood vaccinations that are not up-to-date.
- D. Use diluted commercial mouthwash for mouth care.
Correct answer: A
Rationale: The correct answer is to use sunblock or protective clothing when outdoors. Methotrexate can cause photosensitivity, making the child more prone to sunburns and skin damage. Therefore, advising the parents to protect their child's skin from direct sunlight exposure is crucial. Choice B is incorrect because exposing the child to direct sunlight without protection can worsen the photosensitivity caused by methotrexate. Choice C is incorrect as obtaining vaccinations is generally avoided during chemotherapy due to the child's compromised immune system. Choice D is incorrect as commercial mouthwash may contain alcohol, which can be irritating to the child's oral mucosa, especially during chemotherapy.
4. The nurse is preparing to administer an intramuscular injection to a 6-month-old infant. Which site is most appropriate for this injection?
- A. Deltoid muscle
- B. Ventrogluteal muscle
- C. Dorsogluteal muscle
- D. Vastus lateralis muscle
Correct answer: D
Rationale: The vastus lateralis muscle is the preferred site for intramuscular injections in infants due to its size and safety. The deltoid muscle is typically used for adults and older children. The ventrogluteal muscle is more commonly used in toddlers and older children. The dorsogluteal muscle is not recommended for intramuscular injections in any age group due to its proximity to major nerves and blood vessels, which poses a risk of injury or sciatic nerve damage.
5. A client with a history of seizures is being discharged home. Which instruction is most important for the nurse to provide?
- A. Take your medication as prescribed.
- B. Avoid driving until your condition is stable.
- C. Keep a seizure diary.
- D. Avoid alcohol consumption.
Correct answer: A
Rationale: The most important instruction for a client with a history of seizures being discharged home is to take their medication as prescribed. Consistent and timely intake of anti-seizure medication is vital in managing seizures and preventing episodes. While instructions like avoiding driving until the condition is stable, keeping a seizure diary, and avoiding alcohol consumption are important, none are as critical as ensuring proper medication adherence to control seizures effectively. Failure to take prescribed medications can lead to breakthrough seizures, compromising the patient's safety and seizure control.
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