A nurse is evaluating a client receiving hemodialysis. Which of the following lab values requires immediate intervention?

Correct Answer: B

Rationale: The correct answer is B. Potassium levels above 5.0 mEq/L can lead to cardiac issues, and a level of 6.5 mEq/L requires immediate intervention. Hyperkalemia can cause life-threatening cardiac arrhythmias. Choices A, C, and D are within normal ranges and do not require immediate intervention in the context of hemodialysis monitoring.

Correct Answer: A

Rationale: The correct answer is A: "Blockage in a blood vessel supplying the brain." Ischemic stroke is caused by a blockage in a blood vessel supplying the brain, leading to reduced blood flow. Hemorrhagic stroke, on the other hand, is caused by bleeding in the brain due to a ruptured blood vessel. Choices B, C, and D are incorrect. Administering thrombolytics, avoiding anticoagulants, and preparing for surgery are specific management strategies that may apply to ischemic or hemorrhagic strokes but do not define the main differences between the two types of strokes.

Correct Answer: A

Rationale: When a patient is exhibiting signs of acute myocardial infarction (AMI), the priority action is to call for emergency assistance immediately. This ensures that the patient receives prompt and appropriate care, including interventions such as administering oxygen, nitroglycerin, and monitoring cardiac rhythm. Administering nitroglycerin should only be done if prescribed by a healthcare provider after assessment and confirmation of AMI. Monitoring the patient's cardiac rhythm is important but not the initial action needed in this critical situation. Administering oxygen and preparing for an ECG are important interventions but should follow the immediate step of calling for emergency assistance.

Correct Answer: A

Rationale: The correct answer is A. Pursed-lip breathing is a nursing consideration for patients with COPD as it helps improve oxygenation and reduces air trapping. While administering bronchodilators and corticosteroids (choice B) is part of the treatment plan, it is typically done by healthcare providers. Monitoring oxygen saturation and arterial blood gases (ABGs) (choice C) is important but not a direct nursing consideration. Teaching the patient how to use an inhaler (choice D) is relevant but not specific to COPD care.

Correct Answer: D

Rationale: The correct answer is D: Tachycardia, hypotension, and decreased urine output are classic clinical manifestations of hypovolemic shock. In hypovolemic shock, the body tries to compensate for low blood volume by increasing the heart rate (tachycardia) to maintain cardiac output, leading to hypotension and decreased urine output. Prompt fluid replacement is necessary to restore intravascular volume. Choices A, B, and C are incorrect because they do not represent the typical manifestations of hypovolemic shock.