what is the primary reason for applying sequential compression devices scds to a patients legs postoperatively
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HESI PN Exit Exam 2024 Quizlet

1. What is the primary reason for applying sequential compression devices (SCDs) to a patient’s legs postoperatively?

Correct answer: A

Rationale: The correct answer is A: To prevent deep vein thrombosis (DVT). Sequential compression devices (SCDs) are used postoperatively to prevent DVT by promoting blood circulation in the legs. This helps reduce the risk of blood clots forming in the deep veins of the legs. Choice B, to promote wound healing, is incorrect as SCDs are primarily used for circulatory purposes rather than wound healing. Choice C, to reduce postoperative pain, is incorrect as the primary purpose of SCDs is not pain management but rather prevention of DVT. Choice D, to maintain body temperature, is incorrect as SCDs are not designed for regulating body temperature but for preventing circulatory issues.

2. What is the priority intervention for a patient experiencing an acute asthma attack?

Correct answer: A

Rationale: Administering a bronchodilator is the priority intervention in an acute asthma attack. Bronchodilators help to quickly open the airways, relieve bronchospasm, and improve breathing. Encouraging the patient to drink fluids may be beneficial for other conditions but is not the priority in an acute asthma attack. Applying a high-flow oxygen mask may be necessary in severe cases of respiratory distress but is not the initial priority when managing an acute asthma attack. Performing chest physiotherapy is not indicated as the primary intervention for an acute asthma attack and may not address the immediate need to open the airways and improve breathing.

3. Which of the following is a primary intervention for a patient experiencing hypoglycemia?

Correct answer: C

Rationale: Giving 15 grams of a fast-acting carbohydrate, such as glucose tablets, is the primary intervention for hypoglycemia. This rapid-acting carbohydrate helps quickly raise blood sugar levels, providing immediate relief to the patient. Administering insulin (Choice A) would further lower blood sugar levels, exacerbating the hypoglycemia. Providing a complex carbohydrate meal (Choice B) would not act quickly enough to address the immediate low blood sugar issue. Encouraging the patient to exercise (Choice D) is inappropriate during hypoglycemia as it can further deplete glucose levels.

4. Which condition is characterized by a progressive loss of muscle strength due to an autoimmune attack on acetylcholine receptors?

Correct answer: A

Rationale: The correct answer is A: Myasthenia gravis. Myasthenia gravis is characterized by muscle weakness caused by autoimmune attack on acetylcholine receptors at the neuromuscular junction. This results in impaired communication between nerves and muscles. Choice B, Multiple sclerosis, is a condition where the immune system attacks the protective myelin sheath covering the nerves in the central nervous system, leading to communication issues between the brain and the rest of the body. Choice C, Amyotrophic lateral sclerosis, is a progressive neurodegenerative disease affecting motor neurons in the brain and spinal cord, not involving acetylcholine receptors. Choice D, Guillain-Barré syndrome, is an acute condition where the immune system attacks the peripheral nerves, causing muscle weakness and paralysis, but it does not target acetylcholine receptors.

5. A female client taking a liquid iron preparation expresses concern that her tooth color has darkened since starting the medication. What action should the PN implement?

Correct answer: A

Rationale: The correct action for the PN to implement is to teach the client to use a straw when taking the medication to reduce further tooth staining. Using a straw minimizes contact between the iron preparation and the teeth, helping prevent additional staining. Choice B is incorrect because withholding doses without consulting the healthcare provider could be detrimental to the client's health. Choice C is incorrect because darkening of tooth color is not an expected effect of liquid iron preparation and should not be reassured as a desired effect. Choice D is incorrect as it does not directly address the client's concern about tooth staining.

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