Correct Answer: D

Rationale: Alteplase recombinant, or t-PA, is a thrombolytic enzyme used to dissolve clots and revascularize the blocked coronary artery in patients experiencing a myocardial infarction (MI). Administering t-PA within the first 6 hours of MI onset is crucial to restore blood flow to the affected area and minimize cardiac tissue damage. Therefore, the correct answer is to revascularize the blocked coronary artery. Choices A, B, and C are incorrect because while controlling chest pain, reducing coronary artery vasospasm, and managing arrhythmias are important goals in managing MI, the primary purpose of administering t-PA within the first 6 hours is to restore blood flow by dissolving clots and revascularizing the blocked coronary artery.

Correct Answer: D

Rationale: In this scenario, the client is presenting with signs of sepsis, such as hypotension, hypothermia, and a recent history of partial-thickness burns with open wounds. The development of watery diarrhea further raises suspicion for sepsis. With a blood pressure of 82/40 mmHg and a low temperature of 96°F (36.6°C), the nurse should recognize the potential for septic shock. Notifying the rapid response team is crucial in this situation as the client requires immediate intervention and management to prevent deterioration and address the underlying septic process. Increasing the room temperature (Choice A) is not the priority as the low body temperature is likely due to systemic vasodilation and not environmental factors. While assessing oxygen saturation (Choice B) is important, the client's hypotension and hypothermia take precedence. Continuing to monitor vital signs (Choice C) alone is insufficient given the critical condition of the client and the need for prompt action to address the sepsis and potential septic shock.

Correct Answer: C

Rationale: Obesity is the most significant risk factor for developing type 2 diabetes mellitus due to its role in insulin resistance. Excess body fat, especially around the abdomen, leads to increased production of inflammatory markers and hormones that can cause insulin resistance. While cigarette smoking, high-cholesterol diet, and hypertension can contribute to health issues, they are not as directly linked to the development of type 2 diabetes mellitus as obesity.

Correct Answer: D

Rationale: An Ankle-Brachial Index of 0.65 suggests moderate arterial vascular disease in a client experiencing intermittent claudication, indicating compromised blood flow to the lower extremities during exercise. This finding requires further evaluation to assess the severity of arterial insufficiency and determine appropriate interventions. Choice A (Heart rate of 57 bpm) is within the normal range for an adult at rest and indicates good cardiovascular fitness. Choice B (SpO2 of 94% on room air) is slightly lower than the normal range but is generally acceptable in a healthy individual. Choice C (Blood pressure of 134/82) falls within the normal range and does not raise immediate concerns in this context.

Correct Answer: D

Rationale: Converting the IV to a saline lock and continuing to monitor the site is the correct action in this scenario. When a client complains of pain at the IV insertion site without redness or edema, it may indicate phlebitis or irritation. Replacing the IV may not be necessary if there are no signs of infection or infiltration. Determining the IV medications administered or consulting with the healthcare provider to start a new IV are not immediate actions required for pain management at the insertion site. Therefore, the most appropriate intervention is to convert the IV to a saline lock and closely observe for any changes or complications.