Mod 4 chem flashcards

Which organ/gland is primarily affected in Cushing's syndrome?

a) Thyroid gland

b) Pancreas

c) Adrenal Gland

d) Liver

c) Adrenal Gland

Cushing's syndrome is characterized by:

a) Adrenal hypofunction

b) Adrenal hyperfunction

c) Thyroid hyperfunction

d) Pancreatic hypofunction

b) Adrenal hyperfunction

A patient presenting with a "buffalo hump," thin arms and legs, and a "moon" face would likely have which lab test result?

a) Low cortisol

b) Decreased ACTH

c) High cortisol

d) Low sodium

c) High cortisol

Addison's disease (Primary adrenal insufficiency) is associated with:

a) Thyroid gland hyperfunction

b) Adrenal hypofunction

c) Pancreatic hyperfunction

d) Adrenal hyperfunction

b) Adrenal hypofunction

Which symptom is characteristic of Addison's disease, particularly in areas like elbows and knuckles?

a) Fat pad (buffalo hump)

b) Heat intolerance

c) Hyperpigmentation

d) Bulging eyes

c) Hyperpigmentation

Which combination of lab results is consistent with Addison's disease?

a) High cortisol, increased ACTH

b) Low sodium, high potassium, decreased ACTH

c) Elevated T3, T4

d) A1C > 6.5

b) Low sodium, high potassium, decreased ACTH

Graves' disease primarily affects which organ/gland?

a) Adrenal Gland

b) Pancreas

c) Thyroid gland

d) Liver

c) Thyroid gland

A patient experiencing heat intolerance, tachycardia, and weight loss might be suffering from:

a) Primary hypothyroidism

b) Adrenal hypofunction

c) Primary hyperthyroidism

d) Diabetes

c) Primary hyperthyroidism

Bulging eyes (exophthalmos) is a distinctive symptom of:

a) Hashimoto's thyroiditis

b) Graves' disease

c) Cushing's syndrome

d) Addison's disease

b) Graves' disease

Hashimoto's thyroiditis is a condition of the thyroid gland characterized by:

a) Primary hyperthyroidism

b) Adrenal hyperfunction

c) Primary hypothyroidism

d) Pancreatic hyperfunction

c) Primary hypothyroidism

Hashimoto's Thyroiditis Which lab test result is typically increased in Hashimoto's thyroiditis?

a) Cortisol

b) T3 and T4

c) Anti-TPO

d) Fasting plasma glucose

c) Anti-TPO

Diabetes is associated with dysfunction in which part of the pancreas?

a) Adrenal cortex

b) Beta cells of the islet of Langerhans

c) Thyroid follicles

d) Liver parenchyma

b) Beta cells of the islet of Langerhans

Polydipsia, polyuria, weight loss, and hunger are common symptoms of:

a) Hashimoto's thyroiditis

b) Addison's disease

c) Graves' disease

d) Diabetes

d) Diabetes

A diagnostic A1C value for diabetes is:

a) < 5.7

b) 5.7 - 6.4

c) > 6.5

d) < 4.0

c) > 6.5

Which gland is primarily affected in Diabetes insipidus (DI)?

a) Pancreas

b) Adrenal gland

c) Pituitary gland

d) Parathyroid gland

c) Pituitary gland

What is the primary cause of Diabetes insipidus (DI)?

a) Increased insulin production

b) Decreased ADH secretion

c) Increased PTH levels

d) Blockage of bile flow

b) Decreased ADH secretion

Polyuria and polydipsia are characteristic symptoms of which condition?

a) Diabetes insipidus

b) Insulinomas

c) Rickets

d) Hepatitis A

a) Diabetes insipidus

Insulinomas are tumors found in which part of the body?

a) Pituitary gland

b) Adrenal cortex

c) Pancreatic islets

d) Thyroid gland

c) Pancreatic islets

Which lab result is characteristic of insulinomas?

a) Low plasma glucose

b) Decreased ADH

c) Elevated calcium

d) Increased total serum bilirubin

a) Low plasma glucose

A patient with elevated insulin and C-peptide levels, alongside low plasma glucose, likely has:

a) Diabetes insipidus

b) Insulinomas

c) Rickets

d) Hepatitis A

b) Insulinomas

Rickets and osteomalacia are associated with a deficiency in which vitamin?

a) Vitamin A

b) Vitamin D

c) Vitamin K

d) Vitamin B12

b) Vitamin D

Which lab test result is consistent with Rickets/Osteomalacia?

a) Elevated total serum bilirubin

b) Low plasma glucose

c) Decreased calcium and phosphorous

d) Elevated AST and ALT

c) Decreased calcium and phosphorous

Delayed growth, muscle weakness, and bone pain are symptoms of:

a) Rickets/Osteomalacia

b) Diabetes insipidus

c) Cirrhosis

d) Reye's syndrome

a) Rickets/Osteomalacia

What is the primary cause of prehepatic jaundice?

a) Increased production of bilirubin

b) Problem occurring in the liver

c) Blockage of bile flow

d) Chronic liver disease

a) Increased production of bilirubin

Which lab test result is characteristic of prehepatic jaundice?

a) Elevated AST and ALT

b) Significantly elevated conjugated bilirubin

c) Increased unconjugated bilirubin

d) Elevated ammonia

c) Increased unconjugated bilirubin

Hepatic jaundice is caused by a problem primarily occurring in which organ?

a) Gallbladder

b) Liver

c) Pancreas

d) Spleen

b) Liver

Elevated AST and ALT levels, along with elevated conjugated and unconjugated bilirubin, suggest which type of jaundice?

a) Prehepatic jaundice

b) Hepatic jaundice

c) Post-hepatic jaundice

d) Obstructive jaundice

b) Hepatic jaundice

What is the primary cause of post-hepatic (obstructive) jaundice?

a) Increased bilirubin production

b) Liver cell damage

c) Blockage of bile flow

d) Viral infection

c) Blockage of bile flow

Significantly elevated conjugated bilirubin, ALP, and GGT are indicative of:

a) Post-hepatic jaundice

b) Prehepatic jaundice

c) Reye's syndrome

d) Cirrhosis

a) Post-hepatic jaundice

Which of the following is a common symptom of cirrhosis?

a) Polyuria

b) Bone pain

c) Hyperpigmentation

d) Ascites

d) Ascites

Cirrhosis is often the progression of what type of liver disease?

a) Acute liver injury

b) Chronic liver diseases

c) Hemolytic anemia

d) Gallbladder stones

b) Chronic liver diseases

Reye's syndrome is linked to aspirin use in children recovering from what?

a) Bacterial infections

b) Fungal infections

c) Viral infections

d) Parasitic infections

c) Viral infections

How is Hepatitis A primarily transmitted?

a) Through direct contact with infected blood

b) Through sexual contact

c) Through the fecal-oral route (ingestion of food, water)

d) Through infected needles

c) Through the fecal-oral route (ingestion of food, water)

Which lab marker indicates an acute phase Hepatitis A infection?

a) Anti-HCV antibody

b) HBsAg

c) IgM anti-HAV Ab

d) IgG anti-HAV Ab

c) IgM anti-HAV Ab

Hepatitis B is transmitted through direct contact with infected:

a) Feces

b) Blood, semen, or vaginal fluids

c) Contaminated food

d) Airborne droplets

b) Blood, semen, or vaginal fluids

Which lab marker indicates an acute or active Hepatitis B infection?

a) Anti-HBC

b) HBsAg

c) Anti-HCV antibody

d) IgM anti-HAV Ab

b) HBsAg

Hepatitis C is most commonly transmitted through:

a) Fecal-oral route

b) Unsafe medical procedures (infected needles)

c) Sexual contact

d) Contaminated food and water

b) Unsafe medical procedures (infected needles)

Which symptom is characteristic of Hepatitis C, often indicating advanced disease?

a) Clay-colored stool

b) Dark urine and fever

c) Fluid buildup in the stomach area (ascites)

d) Red or dark brown urine

c) Fluid buildup in the stomach area (ascites)

Porphyria is a metabolic disorder caused by a deficiency in enzymes involved in the production of:

a) Bilirubin

b) Hemoglobin

c) Insulin

d) Cortisol

b) Hemoglobin

A distinctive symptom of some forms of Porphyria is urine that turns what color after exposure to light?

a) Dark yellow

b) Clay or gray

c) Red or dark brown

d) Clear

c) Red or dark brown

Porphyria cutanea tarda (PCT) can present with skin changes including:

a) Hyperpigmentation, blisters on sun-exposed areas, and hypertrichosis

b) Jaundice and ascites

c) "Moon" face and "buffalo hump"

d) Koilonychia and glossitis

a) Hyperpigmentation, blisters on sun-exposed areas, and hypertrichosis

What is the underlying cause of Iron Deficiency Anemia (IDA)?

a) Excess iron absorption

b) The body lacks sufficient iron to produce hemoglobin

c) Metabolic disorder of heme synthesis

d) Viral infection of the liver

b) The body lacks sufficient iron to produce hemoglobin

Which "hallmark" symptom is associated with Iron Deficiency Anemia (IDA)?

a) Jaundice

b) Koilonychia (spooning nails)

c) Ascites

d) Exophthalmos

b) Koilonychia (spooning nails)

Which lab result is characteristic of Iron Deficiency Anemia (IDA)?

a) Increased serum iron and ferritin

b) Decreased serum iron and ferritin

c) Mid elevations of ALT

d) Elevated unconjugated bilirubin

b) Decreased serum iron and ferritin

Hemochromatosis (HH) is characterized by:

a) Insufficient iron absorption

b) Iron overload and accumulation in tissue

c) Low sodium and magnesium

d) Deficiency in heme biosynthetic pathway enzymes

b) Iron overload and accumulation in tissue

Which of the following is a potential complication of Hemochromatosis (HH)?

a) Polyuria and polydipsia

b) Cirrhosis and diabetes mellitus

c) Bone pain and muscle weakness

d) Hyperpigmentation of elbows and knuckles

b) Cirrhosis and diabetes mellitus

Which lab result is consistent with Hemochromatosis (HH)?

a) Decreased serum iron and ferritin

b) Increased TIBC and transferrin

c) Increased serum iron and ferritin

d) Microcytic hypochromic rbcs

c) Increased serum iron and ferritin

Which isoenzyme of Creatinine Kinase (CK) is considered cardiac specific?

a) CK-BB

b) CK-MM

c) CK-MB

d) CK-AA

c) CK-MB

After an Acute Myocardial Infarction (AMI), when do CK levels typically peak?

a) Within 6-8 hours

b) By 24 hours

c) Within 3-4 days

d) Within 1-3 hours

b) By 24 hours

What is a key characteristic of Troponin I (TnI) as a cardiac biomarker?

a) It is also elevated in chronic kidney disease.

b) It diffuses rapidly into the blood.

c) It is highly specific to heart tissue.

d) It returns to normal within 4 days.

c) It is highly specific to heart tissue.

Why is Myoglobin usually not utilized as a primary cardiac marker despite being one?

a) It is not specific to heart tissue.

b) It rises too slowly after an AMI.

c) It diffuses into the blood rapidly and returns to normal quickly.

d) It is only elevated in chronic muscle diseases.

c) It diffuses into the blood rapidly and returns to normal quickly.

C-reactive protein (CRP) is primarily an acute marker of:

a) Myocardial damage

b) Inflammation

c) Volume overload

d) Heme synthesis disorders

b) Inflammation

Elevated levels of Homocysteine are known to cause:

a) Decreased blood clot formation

b) Arterial damage and increased likelihood of heart attack and stroke

c) Protection against atherosclerosis

d) Reduced inflammation

b) Arterial damage and increased likelihood of heart attack and stroke

B-type natriuretic peptide (BNP) B-type natriuretic peptide (BNP) is secreted by the heart ventricles in response to:

a) Ischemia

b) Inflammation

c) Volume overload

d) Muscle damage

c) Volume overload

What is BNP helpful for in a clinical setting?

a) Determining the exact location of an AMI.

b) Distinguishing cardiac from noncardiac causes of dyspnea.

c) Measuring the extent of atherosclerotic plaque.

d) Monitoring kidney function.

b) Distinguishing cardiac from noncardiac causes of dyspnea.

Which cardiac biomarker is expected to rise earliest after an AMI (within 1-3 hours)?

a) Troponin T

b) Creatinine Kinase (CK)

c) Myoglobin

d) Troponin I

c) Myoglobin

Cystic fibrosis is primarily characterized as a:

a) Bacterial infection

b) Autoimmune disease

c) Genetic disorder

d) Metabolic syndrome

c) Genetic disorder

Which of the following is a common symptom associated with Cystic Fibrosis?

a) Extremely elevated fasting serum gastrin

b) Recurrent infection with unusual pathogens and increased lung inflammation

c) Sudden onset upper right abdominal pain

d) Chronic peptic ulcers and GERD

b) Recurrent infection with unusual pathogens and increased lung inflammation

A diagnostic test for Cystic Fibrosis that involves measuring sweat chloride levels is known as the:

a) Secretin stimulation test

b) Chloride sweat test

c) Fecal pancreatic elastase-1

d) Calcium infusion test

b) Chloride sweat test

Zollinger-Ellison syndrome is caused by:

a) Gallstones obstructing the bile duct

b) Alcohol abuse

c) Gastrin-secreting tumors (gastrinomas) in the pancreas or duodenum

d) A genetic mutation affecting mucus production

c) Gastrin-secreting tumors (gastrinomas) in the pancreas or duodenum

A characteristic symptom of Zollinger-Ellison syndrome is:

a) Recurrent lung infections

b) Enlarged pancreas and vomiting

c) Chronic peptic ulcers, steatorrhea, and GERD

d) Upper right abdominal pain with sudden onset

c) Chronic peptic ulcers, steatorrhea, and GERD

Which lab finding is a key indicator for Zollinger-Ellison syndrome?

a) Elevated lipase and amylase

b) Chloride sweat test >60

c) Extremely elevated fasting serum gastrin

d) Decreased fecal pancreatic elastase-1

c) Extremely elevated fasting serum gastrin

Acute pancreatitis often has a sudden onset and is commonly caused by:

a) Gastrin-secreting tumors

b) Alcohol and biliary tract disease (e.g., gallstones)

c) Genetic mutations

d) Recurrent bacterial infections

b) Alcohol and biliary tract disease (e.g., gallstones)

Which symptoms are typically associated with acute pancreatitis?

a) Hyperpigmentation and blistering skin

b) Ascites and jaundice

c) Enlarged pancreas, steatorrhea, malabsorption, upper right abdominal pain, and vomiting

d) Spooning nails and glossitis

c) Enlarged pancreas, steatorrhea, malabsorption, upper right abdominal pain, and vomiting

In acute pancreatitis, which enzyme levels are typically extremely elevated and considered a key diagnostic marker, often increasing in serum within 24 hours and persisting for 8-14 days?

a) Gastrin

b) Chloride

c) Lipase

d) Elastase-1

c) Lipase

Amylase levels in acute pancreatitis typically increase within how many hours of the onset of the disease?

a) Within 24 hours

b) Within 3-6 hours

c) Within 48 hours

d) Within 72 hours

b) Within 3-6 hours

Chronic pancreatitis is characterized by:

a) Reversible inflammation of the pancreatic tissue

b) Irreversible damage to the pancreatic tissue with inflammation and fibrosis

c) A sudden onset of severe abdominal pain due to pancreatic infection

d) A genetic disorder affecting mucus production

b) Irreversible damage to the pancreatic tissue with inflammation and fibrosis

What is the most common predisposing factor for chronic pancreatitis?

a) Gallstones

b) Gastrin-secreting tumors

c) Excessive alcohol consumption

d) Autoimmune disorders

c) Excessive alcohol consumption

Which of the following is a common symptom of chronic pancreatitis?

a) Extremely elevated fasting serum gastrin

b) Recurrent infection with unusual pathogens

c) Intermittent or constant pain, diabetes, and weight loss

d) Sudden onset upper right abdominal pain with vomiting

c) Intermittent or constant pain, diabetes, and weight loss

In chronic pancreatitis, what is typically observed with lipase and amylase levels?

a) They are extremely elevated.

b) They are significantly decreased.

c) They are normal or mildly elevated because the pancreas loses the ability to produce high amounts of enzymes.

d) They are consistently low.

c) They are normal or mildly elevated because the pancreas loses the ability to produce high amounts of enzymes.

Which lab finding is indicative of pancreatic exocrine insufficiency in chronic pancreatitis?

a) Extremely elevated fasting serum gastrin

b) Low levels of Fecal Elastase-1

c) Elevated amylase and lipase

d) Elevated chloride sweat test

b) Low levels of Fecal Elastase-1

Diabetes can be a symptom of chronic pancreatitis due to:

a) Impaired insulin production from the damaged pancreas

b) Increased glucose absorption in the intestines

c) Reduced insulin sensitivity in peripheral tissues

d) Excessive glucagon secretion

a) Impaired insulin production from the damaged pancreas

If chronic pancreatitis is caused by biliary obstruction, which liver enzymes might be elevated?

a) Only Lipase and Amylase

b) ALT/AST

c) Fecal Elastase-1

d) Gastrin

b) ALT/AST

Which of the following is an excretory and secretory function of the liver?

a) Synthesizing immunoglobulins

b) Ridding the body of heme waste products

c) Storing bile

d) Producing adult hemoglobin

b) Ridding the body of heme waste products

The liver processes and excretes endogenous and exogenous substances into the:

a) Bloodstream or lymph

b) Bile or urine

c) Pancreatic fluid or saliva

d) Cerebrospinal fluid

b) Bile or urine

The liver is involved in the metabolism of which of the following?

a) Only carbohydrates

b) Only lipids and lipoproteins

c) Carbohydrates, lipids, and lipoproteins

d) Only proteins

c) Carbohydrates, lipids, and lipoproteins

Almost all proteins are synthesized in the liver, with the exception of:

a) Enzymes and hormones

b) Structural proteins and transport proteins

c) Immunoglobulins and adult hemoglobin

d) Albumin and clotting factors

c) Immunoglobulins and adult hemoglobin

The liver's role in detoxification involves:

a) Directly sending toxins into the bloodstream

b) Screening, processing, and detoxifying substances before they enter the bloodstream

c) Storing toxins for later release

d) Absorbing toxins without processing them

b) Screening, processing, and detoxifying substances before they enter the bloodstream

Which of the following is NOT listed as a major biochemical function of the liver?

a) Excretory and secretory functions

b) Immune system regulation (e.g., producing all white blood cells)

c) Metabolism of carbohydrates, lipids, and lipoproteins

d) Detoxification and drug metabolism

b) Immune system regulation (e.g., producing all white blood cells)

A patient presents with persistent jaundice, a yellowing of the skin and eyes, indicating a buildup of bilirubin in the body. Based on the liver's biochemical functions, this symptom most directly points to a significant impairment in the liver's ability to:

a) Synthesize essential proteins like albumin.

b) Metabolize carbohydrates for energy regulation.

c) Process and excrete heme waste products.

d) Detoxify exogenous substances like medications.

c) Process and excrete heme waste products

The liver is responsible for synthesizing "almost all proteins" with specific exceptions. If a patient experiences severe liver damage, leading to a significant reduction in protein synthesis, which of the following physiological consequences would be most directly attributable to this specific impairment?

a) Decreased ability to fight off infections due to a lack of immunoglobulins.

b) Reduced oxygen-carrying capacity of the blood due to insufficient adult hemoglobin.

c) Increased risk of bleeding and fluid retention due to deficiencies in clotting factors and albumin.

d) Impaired breakdown of alcohol and drugs, leading to increased toxicity.

c) Increased risk of bleeding and fluid retention due to deficiencies in clotting factors and albumin.

A new medication is developed that is extensively processed and detoxified by the liver before it enters the systemic circulation. For safe and effective dosing of this drug, why would it be crucial to assess a patient's liver function, especially their detoxification capabilities?

a) To ensure adequate carbohydrate stores are available for the drug's absorption.

b) To predict the patient's immune response to the drug and prevent allergic reactions.

c) To prevent toxic accumulation or insufficient therapeutic effect due to altered drug processing.

d) To monitor for changes in lipid and lipoprotein metabolism, which could indirectly affect drug efficacy.

c) To prevent toxic accumulation or insufficient therapeutic effect due to altered drug processing.

Considering the liver's combined roles in processing and excreting waste, synthesizing vital macromolecules, and detoxifying harmful substances, which statement best characterizes the liver's overarching functional significance in maintaining bodily homeostasis?

a) It primarily acts as an endocrine gland, regulating systemic hormone levels.

b) It functions as the body's central metabolic and detoxification hub, critically mediating internal and external biochemical balances.

c) Its main role is limited to producing immune cells and transporting oxygen.

d) It serves as a passive filter, removing only large particulate matter from the blood.

b) It functions as the body's central metabolic and detoxification hub, critically mediating internal and external biochemical balances.

What is released when Red Blood Cells (RBCs) break down?

a) Bilirubin

b) Transferrin

c) Hemoglobin

d) Amino acids

c) Hemoglobin

After hemoglobin is released, what happens to the Iron component?

a) It is converted to bilirubin.

b) It is stored in the gallbladder.

c) It is bound to transferrin and returned to iron stores.

d) It is segregated to amino acids

c) It is bound to transferrin and returned to iron stores.

What is Heme converted into?

a) Globin

b) Bilirubin

c) Transferrin

d) Amino acids

b) Bilirubin

What is the principle pigment found in bile?

a) Hemoglobin

b) Iron

c) Globin

d) Bilirubin

d) Bilirubin

Where is bile, containing bilirubin, primarily stored?

a) In the liver

b) In the kidneys

c) In the gallbladder

d) In the bloodstream

c) In the gallbladder

What are the two forms of bilirubin mentioned?

a) Direct and indirect

b) Soluble and insoluble

c) Unconjugated and conjugated

d) Free and bound

c) Unconjugated and conjugated

Given the breakdown pathway of hemoglobin, what is the most significant metabolic implication for the body regarding the fate of its components?

a) The body prioritizes the direct reuse of all hemoglobin components to synthesize new red blood cells.

b) Essential elements like iron and amino acids are efficiently recycled, while a non-reusable portion (heme) is processed for excretion.

c) Hemoglobin breakdown primarily serves to generate energy, with bilirubin being a minor byproduct.

d) All products of hemoglobin breakdown are immediately excreted to prevent toxicity.

b) Essential elements like iron and amino acids are efficiently recycled, while a non-reusable portion (heme) is processed for excretion.

The text states that heme is "converted to bilirubin," which then becomes the "principle pigment in bile" stored in the gallbladder. This pathway suggests that bilirubin's primary physiological role is related to:

a) Oxygen transport and cellular respiration.

b) Nutrient absorption and energy storage.

c) Waste product elimination via the digestive system.

d) Regulation of blood clotting factors.

c) Waste product elimination via the digestive system.

The mention of "unconjugated and conjugated" forms of bilirubin, without further explanation in this text, most strongly implies which of the following about bilirubin metabolism?

• a) Bilirubin can spontaneously change between these two forms without enzymatic action.

• b) One form is actively produced by the gallbladder, while the other is produced by the liver.

• c) There is a specific metabolic step, likely in the liver, that chemically modifies bilirubin to alter its properties for excretion.

• d) The two forms represent different dietary sources of bilirubin rather than metabolic processing.

c) There is a specific metabolic step, likely in the liver, that chemically modifies bilirubin to alter its properties for excretion.

If there was a congenital defect preventing the binding of iron to transferrin during hemoglobin breakdown, what immediate consequence would be most likely, based on the provided information?

a) An increase in bilirubin production due to excess heme.

b) A deficiency in the body's iron stores despite adequate red blood cell breakdown.

c) Accelerated breakdown of globin into amino acids.

d) Impaired storage of bile in the gallbladder.

b) A deficiency in the body's iron stores despite adequate red blood cell breakdown.

Considering that bile, containing bilirubin, is stored in the gallbladder, what would be the most probable outcome if the gallbladder became severely obstructed?

• a) An increase in the direct excretion of unconjugated bilirubin through the kidneys.

• b) A decrease in red blood cell breakdown to reduce the load on the blocked system.

• c) A buildup of bilirubin in the liver and potentially the bloodstream, as its elimination pathway is blocked.

• d) The body would start converting bilirubin back into heme to compensate.

c) A buildup of bilirubin in the liver and potentially the bloodstream, as its elimination pathway is blocked.

What is the first step in the metabolism of bilirubin?

a) Liver converts bilirubin

b) RBC breakdown

c) Bilirubin travels to the intestines

d) Excretion in urine

b) RBC breakdown

What does unconjugated bilirubin bind to before traveling to the liver?

a) Water

b) Glucuronic acid

c) Albumin

d) Urobilinogen

c) Albumin

Where is unconjugated bilirubin converted into conjugated bilirubin?

a) Intestines

b) Kidneys

c) Liver

d) Spleen

c) Liver

What characteristic describes conjugated bilirubin?

a) Fat-soluble

b) Water-soluble

c) Binds to albumin

d) Formed in the intestines

b) Water-soluble

In the intestines, what is conjugated bilirubin converted into by bacteria?

a) Heme

b) Biliverdin

c) Albumin

d) Urobilinogen

d) Urobilinogen

How is most of the urobilinogen excreted from the body?

a) Through urine

b) Through sweat

c) Through feces

d) Through breathing

c) Through feces