HESI LPN
Fundamentals of Nursing HESI
1. Heparin 20,000 units in 500 ml D5W at 50 ml/hour has been infusing for 5.5 hours. How much heparin has the client received?
- A. 11,000 units.
- B. 13,000 units.
- C. 15,000 units.
- D. 17,000 units.
Correct answer: A
Rationale: To calculate the total amount of heparin received, multiply the infusion rate (50 ml/hour) by the total infusion time (5.5 hours). This results in 275 ml of the solution infused. Since there are 20,000 units of heparin in 500 ml, there are 800 units per ml. Therefore, 275 ml contains 220,000 units. However, the heparin is diluted in 500 ml, so the client has received half of this amount, which is 110,000 units. Therefore, the correct answer is 11,000 units. Choices B, C, and D are incorrect as they do not reflect the correct calculation based on the provided information.
2. In a client with liver cirrhosis, which symptom would be most concerning during assessment?
- A. Jaundice
- B. Ascites
- C. Hepatomegaly
- D. Altered mental status
Correct answer: D
Rationale: Altered mental status would be the most concerning symptom in a client with liver cirrhosis. It may indicate hepatic encephalopathy, a serious complication requiring immediate intervention. While jaundice, ascites, and hepatomegaly are common in liver cirrhosis, they do not directly correlate with the urgency and severity of hepatic encephalopathy as altered mental status does. Therefore, altered mental status takes priority for immediate attention and intervention.
3. A nurse at a screening clinic is assessing a client who reports a history of a heart murmur related to aortic valve stenosis. At which of the following anatomical areas should the nurse place the stethoscope to auscultate the aortic valve?
- A. Second intercostal space to the right of the sternum
- B. Fifth intercostal space at the midclavicular line
- C. Left sternal border
- D. Fifth intercostal space at the anterior axillary line
Correct answer: B
Rationale: The correct placement to auscultate the aortic valve is at the second intercostal space to the right of the sternum, which coincides with the aortic area. The choice stating 'Fifth intercostal space at the midclavicular line' is the correct answer for auscultating the aortic valve. Placing the stethoscope at the left sternal border would be more suitable for listening to the tricuspid valve. The fifth intercostal space at the anterior axillary line is the recommended area for auscultating the mitral valve. Therefore, choice B is the correct answer for assessing the aortic valve in a client with a history of a heart murmur related to aortic valve stenosis.
4. When administering otic ear medication to an adult client, what action should be done to ensure the medication reaches the inner ear?
- A. Press gently on the tragus of the client’s ear.
- B. Pull the ear lobe up and back.
- C. Insert the medication deeply into the ear canal.
- D. Massage the ear gently after administering the medication.
Correct answer: A
Rationale: The correct action to ensure the medication reaches the inner ear is to press gently on the tragus of the client’s ear. The tragus is the small pointed eminence of the external ear, and pressing on it helps direct the medication deeper into the ear canal. Pulling the ear lobe up and back (Choice B) is the correct technique for administering eardrops to a child, not an adult. Inserting the medication deeply into the ear canal (Choice C) can cause injury or discomfort as the eardrops are designed to flow into the ear canal naturally. Massaging the ear gently after administering the medication (Choice D) is unnecessary and may not help the medication reach the inner ear effectively.
5. A client with a diagnosis of hypertension is being assessed. Which symptom would be most concerning?
- A. Headache
- B. Blurred vision
- C. Dizziness
- D. Chest pain
Correct answer: D
Rationale: Chest pain in a client with hypertension is the most concerning symptom as it may indicate a myocardial infarction or other serious cardiac event related to hypertension. Immediate intervention is required to address potential life-threatening conditions. Headache, blurred vision, and dizziness are common symptoms associated with hypertension but are not typically indicative of an acute cardiac event requiring urgent attention.
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