HESI LPN
Adult Health 2 Exam 1
1. What is the homeostatic cellular transport mechanism that moves water from a hypotonic to a hypertonic fluid space?
- A. Filtration
- B. Diffusion
- C. Osmosis
- D. Active transport
Correct answer: C
Rationale: The correct answer is C: Osmosis. Osmosis is the homeostatic cellular transport mechanism that moves water from a hypotonic to a hypertonic fluid space to maintain cellular balance. In osmosis, water moves across a semi-permeable membrane from an area of low solute concentration (hypotonic) to an area of high solute concentration (hypertonic). This process helps regulate the water content inside cells. Choices A, B, and D are incorrect. Filtration involves the movement of solutes and solvents through a membrane due to a pressure difference, diffusion is the movement of solutes from an area of high concentration to low concentration, and active transport requires energy to move substances against their concentration gradient.
2. A client complains of pain at the IV site. Upon assessment, the nurse notes the site is warm, red, and swollen. What is the most likely cause of these findings?
- A. Phlebitis
- B. Infiltration
- C. Allergic reaction
- D. Fluid overload
Correct answer: A
Rationale: The correct answer is A, Phlebitis. Phlebitis is the inflammation of a vein, often caused by irritation from an IV catheter, resulting in warmth, redness, and swelling at the site. Infiltration (choice B) refers to the leaking of IV fluids into the surrounding tissues, causing swelling and pallor, not redness and warmth like in the scenario described. An allergic reaction (choice C) would present with itching, hives, or anaphylaxis, rather than localized warmth, redness, and swelling. Fluid overload (choice D) typically manifests as generalized edema, shortness of breath, and weight gain, not localized symptoms at the IV site.
3. A client with a history of chronic kidney disease (CKD) is being discharged with a prescription for epoetin alfa (Epogen). What should the nurse include in the discharge teaching?
- A. Take this medication on an empty stomach.
- B. Monitor your blood pressure regularly.
- C. Expect to feel better immediately.
- D. Avoid foods high in potassium.
Correct answer: B
Rationale: The correct answer is B: 'Monitor your blood pressure regularly.' Epoetin alfa (Epogen) can lead to hypertension as a side effect, so it is essential for clients with CKD to monitor their blood pressure regularly. Choice A is incorrect because epoetin alfa does not need to be taken on an empty stomach. Choice C is incorrect because the client should not expect immediate improvement upon starting the medication. Choice D is incorrect because while monitoring potassium intake is important in CKD, the question specifically pertains to epoetin alfa and its side effects, not potassium intake.
4. The healthcare provider prescribes erythromycin (Ilosone) 300 mg PO QID. The medication label reads, 'Ilosone 100mg/5mL.' How many mL should the nurse administer at each dose?
- A. 15 mL
- B. 10 mL
- C. 20 mL
- D. 5 mL
Correct answer: A
Rationale: To determine the volume of medication needed for a 300 mg dose of Ilosone (100mg/5mL), we set up a proportion: 100 mg is to 5 mL as 300 mg is to x mL. Cross-multiplying, we get x = (300*5)/100 = 15 mL. Therefore, the nurse should administer 15 mL at each dose. Choice B (10 mL) is incorrect as it does not reflect the correct calculation based on the medication concentration. Choices C (20 mL) and D (5 mL) are also incorrect as they do not accurately calculate the volume required for the prescribed dose.
5. A grand multiparous client had a precipitous delivery in the emergency room 6 hours ago. The client was given oxytocin intramuscularly after birth. The nurse examines the client and observes the pad under her buttocks is full of blood. Which action should the nurse take first?
- A. Place a new pad and weigh the pad removed to determine blood loss.
- B. Massage the fundus and express clots.
- C. Start an IV and begin an oxytocin infusion.
- D. Clean the perineal area and encourage her to breastfeed.
Correct answer: B
Rationale: Massaging the fundus and expressing clots helps contract the uterus and reduce postpartum hemorrhage.
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