A patient is admitted with esophageal varices and portal hypertension. Which underlying cause of these conditions would the nurse suspect?

Choice A rationale
The red blood cell (RBC) count is not typically affected by hemodialysis. Hemodialysis is a process that primarily targets the removal of waste products and excess fluid from the blood, not red blood cells.

Choice B rationale
Potassium levels are often elevated in clients with renal failure due to the kidneys' inability to excrete potassium. Hemodialysis helps to remove excess potassium from the bloodstream, thereby decreasing its levels.

Choice C rationale
Calcium levels can be affected by hemodialysis; however, they are more often managed with medication and diet rather than being directly targeted by the dialysis process itself.

Choice D rationale
Protein levels should not decrease significantly as a result of hemodialysis. The dialysis membrane is designed to allow small waste products to pass through while retaining larger molecules like proteins.

Choice A rationale
Liver cirrhosis is the most common cause of esophageal varices and portal hypertension. Cirrhosis leads to scarring of the liver, which impedes blood flow through the portal vein, causing increased pressure (portal hypertension) and the development of collateral blood vessels (varices) as the body attempts to bypass the blockage.

Choice B rationale
Throat lacerations are not related to the development of esophageal varices or portal hypertension. They are typically acute injuries and do not cause the chronic changes seen in the vasculature associated with these conditions.

Choice C rationale
Kyphosis, a curvature of the spine, does not cause esophageal varices or portal hypertension. It is a structural skeletal condition and does not affect the vasculature of the esophagus or the portal venous system.

Choice D rationale
While squamous cell cancer can occur in the esophagus, it is not a typical cause of portal hypertension or esophageal varices. These varices are usually a result of increased pressure in the portal vein, not directly from a malignancy.