All are specialized transports. except:

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Question 1 of 5

All are specialized transports. except:

Correct Answer: D

Rationale: Simple diffusion is a passive transport process that does not require specialized transport proteins or energy expenditure. It involves the movement of molecules from an area of higher concentration to an area of lower concentration without the aid of a protein channel or carrier. In contrast, active transport, facilitated diffusion, and pinocytosis are specialized transports that utilize specific proteins and mechanisms to help move molecules across cell membranes. Active transport requires energy to move molecules against their concentration gradient, facilitated diffusion involves the use of specific protein channels or carriers to facilitate movement, and pinocytosis is a form of endocytosis where cells engulf fluid droplets.

Question 2 of 5

The nurse is caring for a patient who is receiving warfarin (Coumadin) and notes bruising and petechiae on the patient™s extremities. The nurse will request an order for which laboratory test?

Correct Answer: B

Rationale: The nurse should request an order for a platelet level to assess the patient's platelet count. Warfarin (Coumadin) is an anticoagulant medication that works by interfering with the blood clotting process. Bruising and petechiae may be signs of decreased platelet count or impaired platelet function. Monitoring the platelet level will help determine if the patient's symptoms are related to thrombocytopenia (low platelet count). While the International Normalized Ratio (INR) is commonly used to monitor the effects of warfarin therapy, in this case, the presence of bruising and petechiae suggest a need to assess platelet levels specifically. PT and aPTT tests assess the clotting function of factors produced by the liver and are not directly related to platelet count. Vitamin K level may be tested in cases of suspected vitamin K deficiency, but it would not directly help in assessing

Question 3 of 5

What is the primary action of interferon alfa?

Correct Answer: C

Rationale: Interferon alfa is an immunomodulatory agent that works by enhancing the immune system's ability to fight cancer. It has cytotoxic and cytostatic effects, meaning it can kill cancer cells or inhibit their growth. Additionally, it promotes the differentiation of stem cells, which can help restore normal cell function. While interferon alfa does produce cytokines and interleukins, its primary action is immunomodulation and direct effects on cancer cells. It does not primarily cause allergic reactions or produce red blood cells.

Question 4 of 5

A 55-year-old man is concerned about hair loss. The nurse expects that the patient’s baldness may be treated with which drug?

Correct Answer: D

Rationale: Finasteride is an FDA-approved medication for male pattern baldness (androgenetic alopecia). It works by inhibiting the conversion of testosterone to dihydrotestosterone, which is responsible for hair follicle miniaturization. Dexamethasone (A), para-aminobenzoic acid (B), and mupirocin (C) are not used to treat hair loss.

Question 5 of 5

A patient who has advanced cancer is receiving opioid medications around the clock to 'keep him comfortable' as he nears the end of his life. Which term best describes this type of therapy?

Correct Answer: A

Rationale: Palliative therapy focuses on relieving symptoms and improving quality of life for patients with serious or life-limiting illnesses, such as advanced cancer. The goal is not to cure the disease but to provide comfort and alleviate suffering. In this case, the patient is receiving opioids around the clock to manage pain and ensure comfort, which is a hallmark of palliative care. Maintenance therapy is used to sustain a patient's condition, supportive therapy addresses specific symptoms, and supplemental therapy provides additional treatment. Therefore, palliative therapy is the most appropriate term for this scenario.

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