Correct Answer: A

Rationale: During disaster triage, clients with severe injuries that are immediately life-threatening and have a high likelihood of mortality without intervention are assigned the highest priority. A below-the-knee amputation falls into this category as it indicates a critical injury that requires immediate attention to prevent further complications or loss of life. Fractured tibia, a 95% full-thickness body burn, and a 10 cm laceration to the forearm, while serious, do not pose the same level of immediate life-threatening risk as a below-the-knee amputation in the context of disaster triage.

Correct Answer: B

Rationale: The correct answer is B: Hypokalemia. Furosemide, a loop diuretic, can cause potassium loss leading to hypokalemia. Monitoring potassium levels is crucial as low potassium can result in various complications like cardiac dysrhythmias. Choices A, C, and D are incorrect. Hypernatremia is high sodium levels, which are not typically associated with furosemide use. Hypercalcemia is elevated calcium levels and hypomagnesemia is low magnesium levels, which are not the primary electrolyte imbalances associated with furosemide.

Correct Answer: A

Rationale: The correct action for the nurse to take when caring for a client with Raynaud's disease is to provide information about stress management. Raynaud's disease is a condition where the blood vessels narrow in response to cold or stress, leading to reduced blood flow to certain areas of the body, usually the fingers and toes. Stress management helps reduce triggers for Raynaud's disease by minimizing emotional stress, which can trigger vasospasms. Choice B is incorrect as maintaining a warm temperature, rather than a cool one, is recommended for individuals with Raynaud's disease to prevent triggering vasospasms. Choice C is incorrect because epinephrine is not typically used to manage Raynaud's disease, as it can further constrict blood vessels. Choice D is incorrect as glucocorticoid steroids are not a first-line treatment for Raynaud's disease.

Correct Answer: C

Rationale: The correct answer is to inject the medication into the client's abdomen. Enoxaparin is a medication that should be administered subcutaneously, not intramuscularly. Massaging the injection site after administration is not recommended as it can cause bruising or discomfort. Injecting the medication into the deltoid muscle is also incorrect because enoxaparin should be given in areas of adipose tissue, such as the abdomen, to ensure proper absorption and effectiveness.

Correct Answer: B

Rationale: When setting up a sterile field for a dressing change, the nurse should open the outermost flap of the sterile kit away from the body. This action helps maintain the sterility of the field by minimizing the risk of contamination. Option A is incorrect because the cap from the solution should be placed sterile side down to prevent contamination. Option C is incorrect because the sterile dressing should be placed at least 1.25 cm away from the edge of the sterile field to maintain its sterility. Option D is incorrect because the sterile field should be set up above waist level to prevent potential contamination from reaching the field.