LPN Pharmacology Practice Test

Correct Answer: C

Rationale: Increasing fluid intake is an important teaching point for clients starting metformin to prevent gastrointestinal discomfort, a common side effect of this medication. Metformin can cause gastrointestinal symptoms such as nausea, bloating, and diarrhea, which can be reduced by staying well-hydrated. Therefore, advising the client to increase their fluid intake will help minimize these side effects and improve medication tolerance. The other options are incorrect: Option A is a general instruction for taking medications but not specifically related to metformin. Option B is incorrect because metformin typically does not cause hypoglycemia but rather hyperglycemia. Option D is also incorrect as a metallic taste in the mouth is not a common side effect of metformin.

Correct Answer: B

Rationale: Shaking the inhaler well before use is crucial as it helps ensure proper mixing of the medication, which is essential for effective delivery of the drug to the lungs. This step is important for optimal therapeutic effects of albuterol inhalation. Choices A, C, and D are incorrect. Using the inhaler every 4 hours around the clock without specifying a maximum number of doses can lead to overuse. Rinsing the mouth with water after each use is typically advised for inhaled corticosteroids to reduce the risk of oral thrush, not for albuterol. Using the inhaler while lying down is not recommended as it may lead to improper medication delivery to the lungs.

Correct Answer: B

Rationale: The correct answer is B: 'Report any signs of bleeding.' When a patient is prescribed warfarin, it is essential to monitor for signs of bleeding as warfarin is an anticoagulant that increases the risk of bleeding. Choices A, C, and D are incorrect. Avoid using a soft toothbrush is not directly related to warfarin therapy, increasing the intake of leafy green vegetables can interfere with warfarin's effectiveness due to its vitamin K content, and taking warfarin with food is unnecessary as it can be taken with or without food.

Correct Answer: C

Rationale: Activated partial thromboplastin time (aPTT) is the laboratory result that should be monitored to evaluate the effectiveness of heparin. Heparin works by prolonging the aPTT, and monitoring this parameter helps ensure the medication's effectiveness and safety in preventing clot formation. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor the effectiveness of warfarin, another anticoagulant. Platelet count is essential to assess platelet function and clotting disorders, but it is not specifically used to monitor heparin therapy.

Correct Answer: B

Rationale: The correct answer is to instruct the client to report any signs of bleeding when taking warfarin. Warfarin is an anticoagulant medication that increases the risk of bleeding, so it is essential to monitor for any signs of abnormal bleeding and report them promptly for appropriate management. Choices A, C, and D are incorrect. Instructing the client to avoid using a soft toothbrush is not directly related to warfarin therapy. Increasing the intake of leafy green vegetables is not recommended as they contain vitamin K, which can interfere with warfarin's anticoagulant effects. Taking warfarin with food can be inconsistent and may not result in optimal absorption.