A nurse is caring for a client who has diabetes insipidus and has had a urinary output of 3,000 mL in the past 12 hr. Which of the following medications should the nurse expect to administer to the client?

• Myocardial infarction: The rising troponin levels (Troponin T increasing from 0.08 ng/mL to 0.2 ng/mL and Troponin I rising from 0.01 ng/mL to 0.1 ng/mL) indicate myocardial injury. Persistent chest tightness, shortness of breath, diaphoresis, and anxiety suggest ongoing ischemia. The lack of complete pain relief after nitroglycerin further supports myocardial infarction rather than stable angina.
• Pulmonary embolism: Shortness of breath is a symptom of pulmonary embolism, but the absence of acute hypoxia, pleuritic chest pain, or significant coagulation abnormalities makes this less likely. The client's symptoms and laboratory findings more strongly support a cardiac etiology.
• Bleeding: While thrombolytic therapy increases bleeding risk, the aPTT (32 seconds) and platelet count (350,000/mm³) are within normal limits. There are no reported signs of active bleeding, such as hypotension, bruising, or hematuria, making this a less relevant immediate concern.
• Shortness of breath: Often present in myocardial infarction due to decreased cardiac output and pulmonary congestion. The combination of chest pain, diaphoresis, and dyspnea suggests worsening ischemia rather than a primary pulmonary process. However, it is a nonspecific symptom that can also indicate pulmonary embolism or respiratory distress.
• aPTT levels: Normal at 32 seconds (reference: 30–40 seconds), which suggests no immediate risk of abnormal clotting or excessive anticoagulation. This finding does not directly indicate myocardial infarction but is important in monitoring bleeding risk with thrombolytic therapy. A significantly elevated aPTT could raise concern for hemorrhagic complications.
• Elevated troponin levels: A highly specific marker for myocardial injury. The rise in Troponin T and Troponin I over time confirms myocardial damage, distinguishing acute coronary syndrome from stable angina. This trend is critical in diagnosing myocardial infarction, as troponin elevation correlates with the extent of cardiac muscle injury.

A. "The surgeon will make a small incision in your abdomen.": A hysterosalpingography is a fluoroscopic imaging procedure that does not require surgical incisions. Contrast dye is injected through the cervix to visualize the uterus and fallopian tubes.

B. "You may experience referred shoulder pain.": Referred shoulder pain is a common side effect due to peritoneal irritation caused by the contrast dye if it spills into the peritoneal cavity, particularly when the fallopian tubes are patent. This discomfort is temporary and resolves on its own.

C. "Your procedure will be scheduled during menstruation.": The test is typically scheduled after menstruation but before ovulation (days 7-10 of the cycle) to ensure the uterus is clear of blood and to avoid disrupting an early pregnancy.

D. "Warm saline will be instilled via the cervix.": Hysterosalpingography uses iodine-based contrast dye for X-ray imaging, not warm saline. Saline infusion is used in sonohysterography, which is an ultrasound-based procedure.