Intestinal Protozoa - GIARDIA LAMBLIA

Question 1

Flagellate that lives in duodenum, jejunum and upper ileum

FALLING LEAF MOTILITY

covered w/ variant surface proteins

Answer 1

Giardia lamblia

Question 2

Infective stage of Giardia lamblia

Answer 2

Cyst

Question 3

Found only in DIARRHEAL stools

bilaterally SYMMETRICAL, PEAR shaped w/ 2 nuclei, 4 pairs of flagella and a SUCTION DISK which attaches to the intestinal wall

Answer 3

Trophozoite

Question 4

abdominal pain, watery, foul-smelling diarrhea

excessive flatus, smelling like ROTTEN EGGS

NO FEVER, NON BLOODY

Answer 4

Acute Infection (Giardia lamblia)

Question 5

constipation, weight loss and STEATORRHEA

Answer 5

Chronic Infection (Malabsorption Syndrome)

Question 6

Swallowing a weighted piece of string – trophozoites adhere to the string and can be visualized after withdrawal

Answer 6

STRING TEST

Question 7

Treatment for Giardia

Answer 7

METRONIDAZOLE 250 mg TID for 5-7 days

NITAZOXANIDE - not available in Pinas