HESI LPN
HESI Fundamentals Study Guide
1. A healthcare professional is preparing to administer enoxaparin subcutaneously to a client. Which of the following actions should the healthcare professional take?
- A. Administer the medication with the needle at a 45-degree angle.
- B. Administer the medication with the needle at a 90-degree angle.
- C. Inject the medication into the muscle.
- D. Pinch the skin before injecting.
Correct answer: B
Rationale: Enoxaparin is a medication that is administered subcutaneously, which means it should be injected into the fatty tissue layer beneath the skin. Administering enoxaparin at a 90-degree angle ensures proper absorption and reduces the risk of injecting the medication into muscle tissue, which could affect its effectiveness. Injecting the medication at a 45-degree angle may lead to improper absorption as it may not reach the subcutaneous tissue adequately. Injecting the medication into the muscle instead of subcutaneously can alter the absorption rate and therapeutic effects. Pinching the skin before injecting is not necessary for administering enoxaparin subcutaneously and may cause unnecessary discomfort to the client.
2. A client has pharyngeal diphtheria. Which of the following types of transmission precautions should the nurse initiate?
- A. Droplet
- B. Contact
- C. Airborne
- D. Protective
Correct answer: A
Rationale: Pharyngeal diphtheria is transmitted via droplets, primarily through respiratory secretions. Therefore, droplet precautions are necessary to prevent the spread of the infection. Droplet precautions involve wearing a surgical mask, goggles, and a gown when within three feet of the client. Contact precautions are used for diseases transmitted by direct or indirect contact; airborne precautions are for diseases transmitted through airborne particles; protective precautions are not a standard precaution type.
3. When administering an otic medication to an older adult client, which action should the nurse take to ensure that the medication reaches the inner ear?
- A. Press gently on the tragus of the client's ear
- B. Pack a small piece of cotton deep into the client's ear canal
- C. Move the client's auricle down and back toward their head
- D. Tilt the client's head backward for 5 minutes
Correct answer: A
Rationale: The correct action to ensure that otic medication reaches the inner ear is to press gently on the tragus. The tragus is a small cartilaginous projection in front of the ear canal. Pressing on it helps to straighten the ear canal, allowing the medication to reach the inner ear. Packing cotton or moving the auricle can obstruct the ear canal and prevent proper medication delivery. Tilting the client's head backward is not necessary and may not facilitate the medication reaching the inner ear as effectively as pressing on the tragus.
4. The nurse is teaching a client with newly diagnosed type 1 diabetes about insulin administration. Which statement by the client indicates a need for further teaching?
- A. I will rotate my injection sites to avoid lipodystrophy.
- B. I will check my blood sugar before meals and at bedtime.
- C. I will use the same needle for 3 days if I keep it clean.
- D. I will keep my insulin refrigerated until I need it.
Correct answer: C
Rationale: The correct answer is C because insulin needles should be disposed of after a single use to prevent infection. Reusing the same needle for three days can lead to infection and is not a safe practice. Choices A, B, and D demonstrate good understanding of insulin administration and diabetes management, so they do not indicate a need for further teaching.
5. The healthcare provider is caring for a client with a history of hypertension. Which assessment finding would be most concerning?
- A. Blood pressure of 150/90 mmHg
- B. Irregular heart rate
- C. Shortness of breath
- D. Headache
Correct answer: C
Rationale: Shortness of breath in a client with a history of hypertension is a critical assessment finding as it may indicate heart failure, pulmonary edema, or other severe complications. The development of shortness of breath suggests that the client's condition may be rapidly deteriorating and requires immediate medical attention. Elevated blood pressure (150/90 mmHg) is concerning but not as acute as the potential complications associated with shortness of breath. An irregular heart rate and headache can also be symptoms of hypertension, but in this scenario, shortness of breath poses a higher risk of severe cardiovascular or respiratory issues.
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