HESI LPN
HESI CAT Exam 2022
1. In what sequence should the nurse prepare the dose of insulin for a client whose finger stick glucose is 210 mg/dl and is receiving a sliding scale dose of short-acting insulin before breakfast?
- A. Clean the vial's rubber stopper with an alcohol swab, withdraw the correct dose of insulin, and then inject air equal to the insulin dose into the vial.
- B. Inject air equal to the insulin dose into the vial, withdraw the correct dose of insulin, and then clean the vial's rubber stopper with an alcohol swab.
- C. Withdraw the correct dose of insulin, inject air equal to the insulin dose into the vial, and then clean the vial's rubber stopper with an alcohol swab.
- D. Clean the vial's rubber stopper with an alcohol swab, inject air equal to the insulin dose into the vial, and then withdraw the correct dose of insulin.
Correct answer: A
Rationale: The correct sequence for preparing a dose of insulin involves ensuring proper aseptic technique. First, clean the vial's rubber stopper with an alcohol swab to prevent contamination. Second, withdraw the correct dose of insulin to be administered. Lastly, inject air equal to the insulin dose into the vial to maintain proper pressure for withdrawing the medication. This sequence ensures the medication is prepared safely and accurately. Choice A is correct as it follows this sequence. Choices B, C, and D present incorrect sequences that may compromise patient safety by not following the correct aseptic technique. Choice B injects air into the vial before withdrawing insulin, which is incorrect. Choice C reverses the order of withdrawing insulin and injecting air. Choice D withdraws the insulin before injecting air, which can affect the pressure inside the vial and lead to inaccurate dosing.
2. After receiving report, which client should the nurse assess last?
- A. An older client with dark red drainage on a postoperative dressing, but no drainage in the Hemovac
- B. An adult client with no postoperative drainage in the Jackson-Pratt drain with the bulb compressed
- C. An older client with a distended abdomen and no drainage from the nasogastric tube
- D. An adult client with rectal tube draining clear pale red liquid drainage
Correct answer: D
Rationale: The correct answer is D because the client with rectal tube drainage of clear pale red liquid is likely to be the least urgent since this is a normal post-operative finding. Clear pale red liquid drainage from a rectal tube is typically not a cause for immediate concern. Choices A, B, and C present clients with concerning signs that may require more immediate assessment and intervention. A client with dark red drainage on a postoperative dressing may indicate active bleeding, a client with a compressed Jackson-Pratt drain bulb may have inadequate drainage resulting in complications, and a client with a distended abdomen and no drainage from the nasogastric tube may be experiencing gastrointestinal issues that need prompt evaluation.
3. The healthcare provider prescribed furosemide for a 4-year-old child with a ventricular septal defect. Which outcome indicates to the nurse that this pharmacological intervention was effective?
- A. Urine specific gravity changing from 1.021 to 1.031
- B. Daily weight decrease of 2 pounds (0.9 kg)
- C. Blood urea nitrogen (BUN) increasing from 8 to 12 mg/dl (2.9 to 4.3)
- D. Urinary output decreasing by 5 ml/hour
Correct answer: B
Rationale: The correct answer is B. A daily weight decrease of 2 pounds (0.9 kg) is the most appropriate outcome to indicate the effectiveness of furosemide in a child with a ventricular septal defect. Furosemide is a diuretic medication that helps reduce fluid retention. Therefore, a decrease in weight reflects a reduction in fluid volume, which is the desired effect of furosemide. Choices A, C, and D are incorrect because changes in urine specific gravity, blood urea nitrogen (BUN) levels, and urinary output do not directly reflect the effectiveness of furosemide in this context.
4. What should the nurse monitor for during the IV infusion of vasopressin (Pitressin) in a client with bleeding esophageal varices?
- A. Vasodilatation of the extremities
- B. Chest pain and dysrhythmia
- C. Hypotension and tachycardia
- D. Decreasing GI cramping and nausea
Correct answer: B
Rationale: During the IV infusion of vasopressin in a client with bleeding esophageal varices, the nurse should monitor for chest pain and dysrhythmia. Vasopressin is a vasoconstrictor that can cause cardiovascular effects, including chest pain and dysrhythmias. Options A, C, and D are incorrect as vasopressin is not expected to cause vasodilatation of the extremities, hypotension, tachycardia, or improvements in GI symptoms such as cramping and nausea.
5. While eating at a restaurant, a gravid woman begins to choke and is unable to speak. What action should the nurse who witnesses the event take?
- A. Cardiopulmonary resuscitation with uterine tilt
- B. The Heimlich maneuver using chest thrusts
- C. The Heimlich maneuver using subdiaphragmatic thrusts
- D. Call 911 immediately then begin cardiopulmonary resuscitation
Correct answer: C
Rationale: The correct action for the nurse to take when a pregnant woman is choking and unable to speak is to perform the Heimlich maneuver using subdiaphragmatic thrusts. This technique is recommended for a pregnant woman to prevent harm to the fetus. Option A, cardiopulmonary resuscitation with uterine tilt, is not indicated for a choking episode. Option B, the Heimlich maneuver using chest thrusts, can potentially harm the gravid uterus. Option D, calling 911 immediately before providing assistance, can lead to a delay in addressing the immediate choking emergency.
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