Giardia lamblia
Giardia lamblia
Gastrointestinal Block
Gastrointestinal Block
Anatomy of the pharynx and esophagus
Anatomy of the anterolateral abdominal wall
Anatomy of the abdominal viscera: Blood supply of the foregut, midgut and hindgut
Anatomy of the abdominal viscera: Esophagus and stomach
Anatomy of the abdominal viscera: Small intestine
Anatomy of the abdominal viscera: Large intestine
Anatomy of the abdominal viscera: Pancreas and spleen
Anatomy of the gastrointestinal organs of the pelvis and perineum
Anatomy clinical correlates: Anterior and posterior abdominal wall
Development of the gastrointestinal system
Development of the digestive system and body cavities
Stomach histology
Esophagus histology
Gastrointestinal system anatomy and physiology
Gastric motility
Enteric nervous system
Gastroesophageal reflux disease (GERD)
Peptic ulcer
Gastric cancer
Diarrhea: Clinical
Giardia lamblia
Small intestine histology
Colon histology
Carbohydrates and sugars
Proteins
Fats and lipids
Chewing and swallowing
Pancreatic secretion
Bile secretion and enterohepatic circulation
Pancreas histology
Liver histology
Liver anatomy and physiology
Vaccinations
Vaccinations: Clinical
Gallstones
Gallbladder histology
Cholesterol metabolism
Ketone body metabolism
Amino acid metabolism
Nitrogen and urea cycle
HIV (AIDS)
ELISA (Enzyme-linked immunosorbent assay)
Polymerase chain reaction (PCR) and reverse-transcriptase PCR (RT-PCR)
Viral hepatitis
Hepatitis medications
Viral hepatitis: Clinical
Hepatitis B and Hepatitis D virus
Hepatitis C virus
Hepatitis A and Hepatitis E virus
Viral structure and functions
Sympathetic nervous system
Flashcards
Giardia lamblia
0 of 13 complete
Questions
USMLE® Step 1 style questions USMLE
0 of 2 complete
An 82-year-old woman presents to the emergency department because of large-volume diarrhea for the past three days. The patient has had at least five watery bowel movements per day. She has not had any blood in the stool. Medical history is notable for hypertension, osteoarthritis, and a recent episode of aspiration pneumonia, for which she was prescribed clindamycin. Vitals are unremarkable. Mucous membranes appear dry. No focal tenderness is elicited with palpation of the abdomen. Which of the following is the most likely cause of this patient’s symptoms?
Key Takeaways
Giardia lamblia is a protozoan parasite that causes the diarrheal disease giardiasis. It classically affects campers and hikers after contaminated water, causing symptoms like bloating, foul-smelling diarrhea, and flatulence. It is treated with antibiotics, and its prevention includes good hygiene practices and prompt treatment of water supplies that may be contaminated with Giardia.