A client who has a new prescription for warfarin is being taught about the medication's adverse effects by a nurse. Which of the following client statements indicates an understanding of the teaching?

Correct Answer: D

Rationale: The correct answer is D. Black, tarry stools can indicate gastrointestinal bleeding, a serious adverse effect of warfarin that requires immediate medical attention. Option A is incorrect because while bruising is a common side effect of warfarin, it is not limited to the elbows. Option B is incorrect as a red rash is not a typical adverse effect of warfarin. Option C is also incorrect because developing a cough is not a reason to discontinue warfarin unless advised by a healthcare provider.

Correct Answer: B

Rationale: The correct answer is to assist the client to a sitting position. Placing the client in a sitting position helps facilitate easier access during the thoracentesis procedure by allowing gravity to assist in the removal of pleural fluid. Placing the client in a prone, supine, or lateral position would not provide the optimal positioning needed for a thoracentesis and could make the procedure more challenging or uncomfortable for the client.

Correct Answer: C

Rationale: During an acute asthma exacerbation, the priority is to quickly relieve bronchoconstriction and improve airflow. Albuterol is a short-acting bronchodilator that acts rapidly to dilate the airways, making it the first-line medication for acute symptom relief. Montelukast is a leukotriene receptor antagonist used for long-term asthma control, not for immediate relief. Salmeterol is a long-acting bronchodilator used for maintenance therapy, not for acute exacerbations. Fluticasone is an inhaled corticosteroid that reduces airway inflammation and is also used for long-term control, not for immediate relief during an exacerbation.

Correct Answer: B

Rationale: The correct action to prevent an air embolism in a client with a central venous catheter is to have the client perform the Valsalva maneuver while the catheter is removed. This maneuver helps to close the airway and prevent air from entering the bloodstream. Keeping the catheter clamped at all times (Choice A) is not necessary and may lead to clot formation. Using a non-coring needle (Choice C) is important for accessing the catheter but does not specifically prevent air embolism. Flushing the catheter with 0.9% sodium chloride (Choice D) helps maintain patency but does not directly prevent air embolism.

Correct Answer: C

Rationale: The correct answer is C: "I should remain upright for at least 30 minutes after taking this medication." This statement indicates understanding because clients taking alendronate should remain upright for at least 30 minutes after taking the medication to prevent esophageal irritation. Choice A is incorrect because alendronate should be taken with a full glass of water after waking up, not before breakfast. Choice B is incorrect because alendronate should be taken on an empty stomach, not with food. Choice D is incorrect because alendronate should be taken separately from antacids.