which of the following steps happens first during hemostasis
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ATI RN

ATI Pathophysiology Exam 2

1. Which of the following steps occurs first during hemostasis?

Correct answer: A

Rationale: Vascular spasm is the initial step in hemostasis, where blood vessels constrict to reduce blood flow to the injured area. This constriction helps limit blood loss until further steps like platelet plug formation and coagulation can take place. Platelet plug formation and coagulation occur after the vascular spasm, making them incorrect choices. Dissolution of the clot happens much later in the healing process, after the injury has sufficiently healed.

2. A 34-year-old woman has presented to the clinic for the first time, and the nurse learns that she has been taking Depo Provera for the past 13 years. This aspect of the woman's medical history should prompt what assessment?

Correct answer: C

Rationale: The correct answer is bone density testing (Choice C). Long-term use of Depo Provera, a hormonal contraceptive, is associated with decreased bone mineral density. Assessing bone density is crucial to monitor for potential osteoporosis. Cardiac stress testing (Choice A) is not indicated based on the medication history provided. Renal ultrasound (Choice B) and evaluation of triglyceride levels (Choice D) are not directly related to the use of Depo Provera.

3. A nurse practitioner is seeing a client in the clinic with a suspected diagnosis of bacterial meningitis. What should the nurse anticipate as the priority action?

Correct answer: A

Rationale: The correct answer is to administer the first dose of antibiotics immediately after blood cultures are drawn for suspected bacterial meningitis. This is crucial to initiate treatment promptly and improve patient outcomes. Starting an IV line and administering corticosteroids (Choice B) may be part of the treatment plan but administering antibiotics is the priority. Isolating the client (Choice C) is important to prevent the spread of infection but not the priority over initiating antibiotic therapy. Performing a lumbar puncture (Choice D) may confirm the diagnosis, but treatment should not be delayed for this step in suspected cases of bacterial meningitis.

4. A patient is taking a statin for hyperlipidemia. What important instruction should the nurse provide to the patient?

Correct answer: A

Rationale: The correct answer is to instruct the patient to take the medication at night to avoid muscle pain. Statins are known to potentially cause muscle pain or weakness; taking the medication at night can help reduce the incidence of these side effects. Option B is incorrect because the timing of statin administration is not related to its effectiveness throughout the day. Option C is a general precaution when taking medications but not the most important instruction specific to statins. Option D is incorrect as taking the medication with a high-fat meal can actually decrease its absorption.

5. Which statement best conveys an aspect of the role of cerebrospinal fluid (CSF)?

Correct answer: B

Rationale: The correct answer is B. Cerebrospinal fluid primarily cushions the brain and spinal cord, protecting them from injury. Choice A is incorrect because while CSF contributes to the brain's immune environment, its main role is not providing immune protection as a physical barrier. Choice C is incorrect because CSF has a significant role in the exchange of nutrients and waste products, rather than a limited one. Choice D is incorrect as CSF is not primarily a medium for nerve impulse transmission, but rather serves as a protective and supportive fluid.

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