A patient with diabetes insipidus has excessive urine output and dehydration. 

Chronic hepatitis B virus (HBV) infection can be: 

A patient with refractory hypertension is diagnosed with a pheochromocytoma. What is the underlying cause of hypertension in this condition?

An 80-year-old patient has a reduced estimated glomerular filtration rate (eGFR).  What factors contribute to reduced eGFR in older adults? 

Blood flows from branches of the hepatic artery and portal vein at the periphery of the lobule through the sinusoids to the: 

During a meal, which hormone is likely to be released to coordinate activity in the proximal segments of the GI tract? 

A patient with portal hypertension is being treated to reduce hepatic vascular resistance. Which of the following mechanisms is targeted by this treatment?

A patient with peptic ulcer disease is prescribed a medication that inhibits histamine receptors on parietal cells. Which of the following effects is expected? 

A clinician is assessing kidney function in an elderly patient using serum creatinine levels.  What challenge is associated with estimating GFR in older adults? 

What impact would impaired proximal tubule function have on kidney processing?