A clinic nurse asks her patient who suffers from migraine headaches if she experiences an aura before the headache begins. The patient appears confused and asks "What is an aura?". Which statement is true? "An aura

A. Paralytic ileus: Paralytic ileus is a common complication of major abdominal surgery and prolonged bed rest. It is a temporary cessation of normal bowel peristalsis, leading to a lack of bowel sounds and the inability to pass gas or stool.

B. Esophageal dysplasia: This condition refers to abnormal changes in the cells of the esophagus, typically related to chronic gastroesophageal reflux disease (GERD), not prolonged bed rest.

C. Gastroparesis: This is a condition in which the stomach cannot empty itself of food in a normal fashion, often related to diabetes or damage to the vagus nerve. It is not a direct result of prolonged bed rest.

D. Paralytic ileum: This should refer to "paralytic ileus."

A. Diminished serum albumin levels cause water to shift from blood to tissue: In cirrhosis, liver dysfunction leads to decreased production of albumin, a protein that helps maintain oncotic pressure. Low albumin levels cause fluid to shift from the vascular space into the tissues, resulting in ascites and peripheral edema.

B. Portal hypotension causes a fluid shift from the abdominal cavity into the portal veins: Portal hypertension, not hypotension, is a common feature of cirrhosis, but it leads to ascites by increasing pressure in the portal venous system, not by shifting fluid into the portal veins.

C. Hypoaldosteronism causes a fluid volume deficit: shifting water from blood into tissue: Cirrhosis often leads to hyperaldosteronism, not hypoaldosteronism, resulting in sodium and water retention, which contributes to edema.

D. Aberrations of the portal system cause a back-up of blood that leads to hydronephrosis: Hydronephrosis is related to obstruction of the urinary tract, not a complication of portal hypertension or cirrhosis.