the nurse is preparing to administer a subcutaneous injection of heparin what is the correct angle of insertion

HESI LPN

Adult Health 1 Final Exam

1. The nurse is preparing to administer a subcutaneous injection of heparin. What is the correct angle of insertion?

A. 15 degrees
B. 30 degrees
C. 45 degrees
D. 90 degrees

Correct answer: C

Rationale: The correct angle of insertion for a subcutaneous injection, such as heparin, is 45 degrees. This angle is appropriate as it helps to ensure proper delivery of the medication into the subcutaneous tissue. Option A (15 degrees) is too shallow for a subcutaneous injection and may result in the medication being deposited into the muscle. Option B (30 degrees) is also too shallow for subcutaneous injections. Option D (90 degrees) is used for intramuscular injections, not subcutaneous injections.

2. A client with a history of pulmonary embolism is on anticoagulant therapy. What should the nurse monitor regularly?

A. International Normalized Ratio (INR)
B. Blood glucose levels
C. Blood pressure
D. Temperature

Correct answer: A

Rationale: Correct! Monitoring INR is essential in clients on anticoagulant therapy to ensure the blood's clotting time is within the therapeutic range, preventing further embolic events or excessive bleeding. Monitoring blood glucose levels (Choice B), blood pressure (Choice C), and temperature (Choice D) is important for various other conditions but is not directly related to anticoagulant therapy for a client with a history of pulmonary embolism.

3. The nurse is caring for a client with a diagnosis of major depressive disorder who has been prescribed a selective serotonin reuptake inhibitor (SSRI). What is the most important teaching point?

A. Take the medication with food.
B. Expect to see improvement within 24 hours.
C. Avoid drinking grapefruit juice.
D. Report any thoughts of self-harm immediately.

Correct answer: D

Rationale: The correct answer is D: 'Report any thoughts of self-harm immediately.' Clients prescribed SSRIs should be educated to report any thoughts of self-harm promptly, as these medications can initially increase suicidal ideation. Choice A is incorrect because SSRIs are usually taken on an empty stomach. Choice B is incorrect as it takes several weeks for SSRIs to reach their full effectiveness. Choice C is irrelevant to SSRI therapy.

4. What is the primary function of neutrophils?

A. Heparin secretion
B. Transport oxygen
C. Phagocytotic action
D. Antibody formation

Correct answer: C

Rationale: The correct answer is C: Phagocytotic action. Neutrophils are key components of the immune system, primarily involved in the phagocytosis of bacteria and other pathogens. Choice A, Heparin secretion, is incorrect as heparin is primarily secreted by mast cells and basophils. Choice B, Transport oxygen, is incorrect as this is mainly the function of red blood cells. Choice D, Antibody formation, is incorrect as antibody production is primarily carried out by B lymphocytes.

5. Which client is at the highest risk for developing pressure ulcers?

A. A 50-year-old client with a fractured femur
B. A 30-year-old client with diabetes mellitus
C. A 65-year-old client with limited mobility
D. A 70-year-old client with a history of stroke

Correct answer: C

Rationale: Clients with limited mobility are at the highest risk for developing pressure ulcers due to prolonged pressure on specific areas of the body. This constant pressure can lead to tissue damage and ultimately result in pressure ulcers. While age and medical conditions such as diabetes and a history of stroke can contribute to the risk of pressure ulcers, limited mobility is the most significant factor as it directly affects the ability to shift positions and relieve pressure on vulnerable areas of the body. Therefore, the 65-year-old client with limited mobility is at the highest risk compared to the other clients. The 50-year-old client with a fractured femur may have limited mobility due to the injury, but it is temporary and may not be as prolonged as chronic limited mobility. The 30-year-old client with diabetes mellitus and the 70-year-old client with a history of stroke are at risk for developing pressure ulcers, but their conditions do not directly impact their ability to shift positions and alleviate pressure like limited mobility does.