+ Increase Font Decrease Font Question 14 of 50 A 77-year-old woman with a history of hypertension, type 2 diabetes mellitus (T2DM), and heart failure with reduced ejection fracture (HFrEF) presents to the emergency department reporting generalized weakness and malaise. She states that she feels she will pass out whenever she stands up. The patient reports voiding only twice a day, and her urine has become dark and concentrated. She has continued taking all regular medications, which are: metformin (Glucophage), furosemide (Lasix), lisinopril (Prinivil), meloxicam (Mobic), and a multivitamin. Vital signs in the ED show blood pressure of 130/80 mm Hg while seated and 90/50 while standing. On physical examination, she has mild tachycardia, dry mucous membranes and lips, flat jugular veins, and skin tenting. Which of the following diagnoses does the AGACNP think is the cause of the patient's symptoms and physical exam findings? O Acute kidney injury (AKI) O Hepatic encephalopathy O Gout O Heart failure exacerbation