General Flashcards

Absorption of carbohydrates' most typical disorder.

Answer: Lactose Intolerance

Lactose intolerance is the most prevalent disorder of carbohydrate absorption. It results from a deficiency of lactase, the enzyme needed to break down lactose (a sugar in dairy products) into absorbable glucose and galactose. Without sufficient lactase, undigested lactose ferments in the colon, leading to characteristic symptoms like bloating, gas, abdominal pain, and diarrhea after consuming dairy.

Which three enzymes do the pancreas produce?

Answer: Amylase, lipase and protease

The pancreas is a crucial organ for digestion, producing a variety of enzymes secreted into the small intestine. The three primary classes of digestive enzymes produced by the pancreas are amylase, which digests carbohydrates; lipase, which digests fats; and proteases (e.g., trypsin, chymotrypsin), which digest proteins. These enzymes are essential for breaking down macronutrients into forms that can be absorbed by the body.

A copper poisoning caused by a hereditary disease of copper metabolism that alters the person's personality and causes neurologic symptoms including tremors and speech impairment.

Answer: Wilson's disease

Wilson's disease is a hereditary genetic disorder characterized by the body's inability to excrete excess copper, leading to its accumulation in organs like the liver, brain, and eyes. This copper toxicity manifests with a range of symptoms, including liver damage, neurological issues such as tremors and speech impairment (dysarthria), and psychiatric changes, fitting the description of altered personality and neurologic symptoms.

What is determined by a nuclear scintiscan and stomach emptying?

Answer: Can determine reflux and aspiration

A nuclear scintiscan, particularly a gastric emptying study, involves tracking a radioactive tracer through the digestive system. This diagnostic tool can accurately measure the rate of stomach emptying and, importantly, detect gastroesophageal reflux (GER) if the tracer moves back into the esophagus. It can also identify aspiration if the tracer enters the airways, making it valuable for diagnosing these specific conditions.

What is determined by a nuclear scintiscan and stomach emptying?

Answer: Barium enema

This question appears to be flawed as it repeats the prompt from Q19 but provides an unrelated correct answer. A barium enema is a diagnostic imaging procedure that uses a contrast agent (barium) introduced into the rectum to visualize the large intestine (colon and rectum) via X-rays. It is used to detect abnormalities like polyps, tumors, or inflammatory bowel disease, and is not determined by or directly related to a nuclear scintiscan or stomach emptying studies.

One potentially dangerous consequence of ____ is toxic mega colon.

Answer: Ulcerative colitis (UC)

Toxic megacolon is a severe and life-threatening complication characterized by acute, non-obstructive dilation of the colon accompanied by systemic toxicity. It is most commonly associated with severe inflammatory bowel diseases, particularly ulcerative colitis (UC). The intense inflammation in UC can lead to paralysis of the colonic musculature, causing it to distend significantly and increasing the risk of perforation and sepsis.

What makes up the majority of the bile that the liver produces?

Answer: Water

Bile, a digestive fluid produced by the liver, is crucial for fat digestion and the elimination of waste products. While it contains important components like bile salts, bilirubin, cholesterol, and electrolytes, water constitutes the vast majority of its volume. Typically, bile is composed of about 95-97% water, allowing it to flow effectively and perform its functions.