what does it mean when a medication has a half life
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Nursing Elites

ATI RN

ATI Proctored Pharmacology 2023

1. What does it mean when a medication has a half-life?

Correct answer: B

Rationale: When a medication has a half-life, it refers to the time it takes for half of the dose to be eliminated from the bloodstream. This parameter is crucial in understanding the duration of action and dosing intervals for medications in clinical practice. Choice A is incorrect as the half-life is not about how long the medication lasts but about elimination from the body. Choice C is incorrect because the half-life is not about the peak effectiveness of the medicine. Choice D is incorrect as it does not accurately define the concept of half-life.

2. A client is prescribed Amlodipine. Which of the following adverse effects should the nurse monitor?

Correct answer: B

Rationale: Corrected Rationale: Amlodipine is a calcium channel blocker known to cause peripheral edema as an adverse effect. The nurse should monitor the client for swelling, particularly in the lower extremities, as it can indicate the development of this side effect. Choice A, Tachycardia, is not a common adverse effect of Amlodipine. Choice C, Hyperglycemia, is not typically associated with Amlodipine use. Choice D, Hypertension, is the condition Amlodipine is prescribed to treat, not an adverse effect of the medication.

3. A client with cancer and a prescription for methotrexate PO reports bleeding gums while being assessed by a nurse in a provider's clinic. Which of the following actions should the nurse take?

Correct answer: B

Rationale: The correct action for the nurse to take when a client on methotrexate reports bleeding gums is to check the client's current platelet count. Bleeding gums may indicate thrombocytopenia, a decreased platelet count which can be a severe side effect of methotrexate therapy. Monitoring the platelet count is crucial for early detection and management of this potentially life-threatening complication. Choice A is incorrect as bleeding gums in this context may not be an expected adverse effect of methotrexate. Choice C is irrelevant and does not address the potential underlying issue of thrombocytopenia. Choice D is not the primary action needed at this point; checking the platelet count is more urgent to assess the severity of the situation.

4. A healthcare professional is preparing to administer eye drops to a client. Which of the following actions should the healthcare professional take? (Select all that apply.)

Correct answer: B

Rationale: When administering eye drops, it is essential to ask the client to look up at the ceiling. This position helps prevent the drops from falling onto the cornea, ensuring that the medication is properly absorbed without causing discomfort or irritation.

5. A healthcare provider is preparing to administer a transfusion of a unit of packed red blood cells (PRBCs) for a client who has severe anemia. Which of the following interventions will prevent an acute hemolytic reaction?

Correct answer: B

Rationale: The correct answer is to obtain help from another healthcare provider to confirm the correct client and blood product. This action is crucial in preventing an acute hemolytic reaction, which is caused by ABO or Rh incompatibility. Verifying the correct client and blood product before the transfusion ensures that there are no errors in identification, reducing the risk of a potentially life-threatening reaction. Choices A, C, and D are important aspects of transfusion safety but are not directly related to preventing acute hemolytic reactions. Ensuring a patent IV line, monitoring vital signs, and staying with the client are all essential during transfusion but do not specifically address the risk of ABO or Rh incompatibility reactions.

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