A nurse is teaching a client who has a prescription of a nasogastric tube (NG) to treat a pyloric obstruction. Which of the following rationales for the use of the nasogastric tube should the nurse include in the teaching?

A. Dyspepsia:

Dyspepsia refers to discomfort or pain in the upper abdomen, often described as indigestion. It is a common symptom of peptic ulcer disease but is not as urgent as the manifestation described in option C.

B. Epigastric discomfort:

Epigastric discomfort is a common symptom of peptic ulcer disease, but the priority is to identify more severe complications, such as bleeding.

C. Hematemesis:

This is the correct answer. Hematemesis refers to the vomiting of blood, which is a serious and potentially life-threatening complication of peptic ulcer disease. It indicates active bleeding in the upper gastrointestinal tract and requires prompt medical attention.

D. Epigastric pain:

Epigastric pain is similar to epigastric discomfort and is a common symptom of peptic ulcer disease. However, the priority in the given options is to identify the more severe complication of hematemesis.

A. Steatorrhea:

Steatorrhea refers to the presence of excessive fat in the stool. If a healthcare provider suspects malabsorption or fat digestion issues, they might order a fecal fat test to assess the amount of fat in the stool. This test is different from a guaiac fecal occult blood test (gFOBT), which is designed to detect blood.

B. Parasites:

The detection of parasites in the stool involves specific testing methods, such as microscopic examination of stool samples or specialized tests aimed at identifying the presence of parasitic organisms. A guaiac fecal occult blood test is not designed to detect parasites; its primary purpose is to identify occult (hidden) blood.

C. Blood:

A stool test for guaiac is specifically designed to detect the presence of occult (hidden) blood in the stool. The guaiac test involves placing a small sample of stool onto a test card containing guaiac, and a color change indicates the presence of blood. This test is commonly used to screen for gastrointestinal bleeding.

D. Bacteria:

Detecting bacteria in the stool typically involves stool cultures or specific tests designed to identify bacterial infections or imbalances in the gut microbiota. The guaiac test is not intended for detecting bacteria; its primary focus is on identifying the presence of blood in the stool.