ATI Proctored Pharmacology 2023

Correct Answer: B

Rationale: The correct antidote for Warfarin is Vitamin K. Warfarin works by inhibiting vitamin K-dependent clotting factors. Administering Vitamin K helps reverse its effects by replenishing these factors. Choices A, C, and D are incorrect. Naloxone is used to reverse opioid overdose, Glucagon is used to treat severe low blood sugar, and Vitamin B is not the antidote for Warfarin.

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.

Correct Answer: A

Rationale: The correct instruction that the nurse should include for a client prescribed Sucralfate is to take the medication on an empty stomach. Sucralfate works by forming a protective barrier over ulcers, which is most effective when the stomach is empty. Taking it with food or other medications may decrease its effectiveness. Instructing the client to take Sucralfate on an empty stomach helps ensure optimal therapeutic benefits. Choices B, C, and D are incorrect because increasing high-sodium foods is not related to Sucralfate therapy, taking the medication with a full glass of milk is not recommended as it may decrease its effectiveness, and the presence of black and tarry stools is not an expected outcome of Sucralfate.

Correct Answer: D

Rationale: The correct answer is D: 'Report persistent diarrhea to your provider.' Erythromycin is known to cause Clostridium difficile-associated diarrhea, which can be severe. Instructing the client to report any persistent diarrhea to their healthcare provider promptly is crucial to prevent complications. Choices A, B, and C are incorrect. Taking Erythromycin with food is generally recommended to reduce stomach upset, but it is not the most critical instruction. Expecting urine to turn dark yellow is not a common side effect of Erythromycin. Taking Erythromycin with a full glass of milk is not necessary and may not be appropriate for all clients, especially those with lactose intolerance or dairy allergies.

Correct Answer: C

Rationale: The first action the healthcare professional should take is to check the client's allergy history before administering the antibiotic to prevent a potential allergic reaction. It is crucial to identify any known allergies to antibiotics to ensure the client's safety and well-being. Administering an antihistamine prior to the antibiotic (Choice A) is not recommended unless an allergic reaction occurs. Monitoring the client's urine output (Choice B) and assessing the client's vital signs (Choice D) are important but not the first step in this situation. Checking the client's allergy history takes precedence to prevent adverse reactions.