What is the significance of detecting VZV DNA in cerebrospinal fluid?
A. Indicates bacterial meningitis
B. Confirms zoster encephalitis
C. Rules out viral infection
D. Suggests dehydration
ANSWER: B
A public health nurse encounters resistance to zoster vaccination. What is the best approach?
a) Ignore community concerns
b) Engage community leaders for education
c) Distribute antivirals widely
d) Limit vaccine access
Answer: b)
During the migratory phase of hookworm larvae within the human body, they pass through the lungs.
While often asymptomatic, heavy infections might present with:
a) Hepatosplenomegaly and jaundice.
b) A transient cough, wheezing, and eosinophilia.
c) Severe abdominal pain and bloody diarrhea.
d) Skin lesions resembling creeping eruption.
The primary mechanism by which Shigella species cause dysentery involves:
A. Production of a potent enterotoxin that causes massive fluid secretion.
B. Formation of cysts that block intestinal villi.
C. Release of a neurotoxin that affects gut motility.
D. Direct invasion of the colonic mucosa, leading to inflammation and ulceration.
ANSWER: D
Which of the following is the primary long-term clinical consequence of chronic, heavy hookworm
infection?
a) Diabetes mellitus
b) Hypertension
c) Severe iron-deficiency anemia
d) Liver cirrhosis
Answer: c)
A pregnant woman in an endemic area is diagnosed with hookworm infection. Her hemoglobin levels
are significantly low. Which anthelmintic medication is generally considered safe and effective for
treating hookworm during the second and third trimesters of pregnancy?
a) Ivermectin
b) Praziquantel
c) Albendazole
d) Diethylcarbamazine
Answer: c)
, The mechanism by which adult hookworms in the small intestine cause blood loss is primarily by:
a) Consuming large quantities of red blood cells directly.
b) Causing widespread intestinal hemorrhage due to severe ulceration.
c) Attaching to the intestinal mucosa and feeding on blood, with continuous leakage from feeding sites.
d) Inducing a systemic coagulopathy.
Answer: c)
Which of the following environmental conditions is most conducive to the development and survival of
hookworm larvae in the soil?
a) Cold, dry, sandy soil
b) Warm, moist, shady soil
c) Arid, rocky terrain
d) Waterlogged, acidic soil
Answer: b)
Differentiating between Ancylostoma duodenale and Necator americanus eggs in a routine stool
microscopic examination is generally:
a) Easily achieved by size differences.
b) Possible by observing distinct morphological features on the eggshell.
c) Not possible, as their eggs are morphologically indistinguishable.
d) Done by PCR analysis of the egg contents.
Answer: c)
A community health worker is implementing a hookworm control program. Which intervention would
be most effective in breaking the transmission cycle?
a) Providing nutritional supplements to all residents.
b) Promoting the consistent use of latrines and discouraging open defecation.
c) Administering prophylactic antibiotics to children.
d) Disinfecting all community water sources with chlorine.
Answer: b)
The adult hookworm primarily resides and feeds in which part of the human body?
a) Large intestine
b) Stomach
c) Small intestine
d) Liver
Answer: c)
A public health program aims to reduce blinding trachoma in a community. They have successfully
established a community-wide latrine program and are educating on proper handwashing. Which
additional intervention would directly support the "F" (Facial Cleanliness) component of the SAFE
strategy?
A. Indicates bacterial meningitis
B. Confirms zoster encephalitis
C. Rules out viral infection
D. Suggests dehydration
ANSWER: B
A public health nurse encounters resistance to zoster vaccination. What is the best approach?
a) Ignore community concerns
b) Engage community leaders for education
c) Distribute antivirals widely
d) Limit vaccine access
Answer: b)
During the migratory phase of hookworm larvae within the human body, they pass through the lungs.
While often asymptomatic, heavy infections might present with:
a) Hepatosplenomegaly and jaundice.
b) A transient cough, wheezing, and eosinophilia.
c) Severe abdominal pain and bloody diarrhea.
d) Skin lesions resembling creeping eruption.
The primary mechanism by which Shigella species cause dysentery involves:
A. Production of a potent enterotoxin that causes massive fluid secretion.
B. Formation of cysts that block intestinal villi.
C. Release of a neurotoxin that affects gut motility.
D. Direct invasion of the colonic mucosa, leading to inflammation and ulceration.
ANSWER: D
Which of the following is the primary long-term clinical consequence of chronic, heavy hookworm
infection?
a) Diabetes mellitus
b) Hypertension
c) Severe iron-deficiency anemia
d) Liver cirrhosis
Answer: c)
A pregnant woman in an endemic area is diagnosed with hookworm infection. Her hemoglobin levels
are significantly low. Which anthelmintic medication is generally considered safe and effective for
treating hookworm during the second and third trimesters of pregnancy?
a) Ivermectin
b) Praziquantel
c) Albendazole
d) Diethylcarbamazine
Answer: c)
, The mechanism by which adult hookworms in the small intestine cause blood loss is primarily by:
a) Consuming large quantities of red blood cells directly.
b) Causing widespread intestinal hemorrhage due to severe ulceration.
c) Attaching to the intestinal mucosa and feeding on blood, with continuous leakage from feeding sites.
d) Inducing a systemic coagulopathy.
Answer: c)
Which of the following environmental conditions is most conducive to the development and survival of
hookworm larvae in the soil?
a) Cold, dry, sandy soil
b) Warm, moist, shady soil
c) Arid, rocky terrain
d) Waterlogged, acidic soil
Answer: b)
Differentiating between Ancylostoma duodenale and Necator americanus eggs in a routine stool
microscopic examination is generally:
a) Easily achieved by size differences.
b) Possible by observing distinct morphological features on the eggshell.
c) Not possible, as their eggs are morphologically indistinguishable.
d) Done by PCR analysis of the egg contents.
Answer: c)
A community health worker is implementing a hookworm control program. Which intervention would
be most effective in breaking the transmission cycle?
a) Providing nutritional supplements to all residents.
b) Promoting the consistent use of latrines and discouraging open defecation.
c) Administering prophylactic antibiotics to children.
d) Disinfecting all community water sources with chlorine.
Answer: b)
The adult hookworm primarily resides and feeds in which part of the human body?
a) Large intestine
b) Stomach
c) Small intestine
d) Liver
Answer: c)
A public health program aims to reduce blinding trachoma in a community. They have successfully
established a community-wide latrine program and are educating on proper handwashing. Which
additional intervention would directly support the "F" (Facial Cleanliness) component of the SAFE
strategy?
