Amebaisis Flashcards

(15 cards)

1
Q

Which of the following is false regarding amebiasis

A. Entamoeba dispar is common in homosexuals
B. HIV is not associated with increased risk of intestinal or extra-intestinal manifestations
C. Most patients asymptomatic carriers
D. Parasite genotype plays a role in determining outcome
E. Person to person transmission does not occur

A

Person to person transmission can occur

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2
Q

Which of the following is not true
A. Cysts can survive under fingernails for 45 min
B. Remain infective in freshwater and seawater
C. Cysts are acid resistant
D. Trophozoites are infective form

A

Cysts are infective form

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3
Q

Cysts of entamoeba are NOT destroyed by

  1. Iodine
  2. Chlorination
  3. Drying
  4. Heat
A

Chlorination

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4
Q

E histolytica and E. dispar cannot be differentiated based on

  1. Zymodemes
  2. Serology
  3. Electrophoretic mobility of isoenzymes
  4. PCR
A

Serology

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5
Q

Gold standard for community screening of E. histolytica

  1. Microscopy of unfixed stool
  2. Ritchie’s fecal concentration
  3. Staining of alcohol fixed stool
  4. Robinson’s in vireo culture
  5. Stool Ag
  6. Serology - IHAT, ELISA, Immunoflourescence
  7. Isoenzyme electrophoresis
A

Isoenzyme electrophoresis and Robinson’s in vitro culture are gold standard

Direct microscopy is more sensitive than serology

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6
Q

Most common cause of long term disability

leprosy
Filariasis
Polio
Syphilis

A

Leprosy is the most common cause of long term disability followed by filariasis

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7
Q

Males are more prone to filariasis - because females cover most of their body
T/F?

A

True

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8
Q

Which is true regarding filariasis

  1. Adult worms cause lymphatic obstruction
  2. Acute presentation with fever, lymphadenitis and lymphangitis
  3. Occasionally adult worms may felt subcutaneously
  4. All of the above
A

All of the above

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9
Q

Which is true

  1. Hydrocele is a late presentation of filariasis
  2. Tropical pulmonary eosinophilia caused by ascaris
  3. Filariasis can cause chyluria and Chylous ascites
  4. Microfilariaea are absent in chylous urine, chylous ascites and hydrocele
A

Hydrocele is an early presentation

Tropical pulmonary eosinophilia is caused by filariasis - dry cough

Parasite can be isolated from chylous urine, chylous ascites and hydrocele

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10
Q

DEC stands for

  1. Diethylcarbamazine
  2. Diethylcarbamazepine
  3. Diethylcarbazole
  4. Diethylcarbamizole
A

Diethylcarbamazine

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11
Q

Match the following with correct concentration used as scolicidal

  1. Hypertonic saline
  2. Ethanol
  3. Povidone iodine

A. 10%
B. 75-90%
C. 1%
D. 15-20%

A

Povidone iodine 1%
Hypertonic saline 15-20%
Ethanol 75-90%

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12
Q

Which of the following is not used for treatment of cystobilliary communication

  1. Ommentoplasty
  2. Ercp
  3. Duct ligation
  4. Hepatectomy
A

Answer - ercp stenting is not used

The communication can be dealt with resection, ommentoplasty prevents development of fistula in the cavity, opening can be suture ligated

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13
Q

Which of the following is not a treatment option for long lateral injury of cbd

  1. Cystic duct stump
  2. Jejunal Pedicle flap
  3. RnY jejunal serosal patch
  4. Primary repair over t tube
A

Primary repair over t tube is unlikely to succeed. Leads to stenosis.

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14
Q

Which of the following are true regarding lung hydatid disease

  1. Lesions are usually single
  2. Meniscus or crescent sign S/o imminent rupture
  3. Water lily sign can be seen on CT, X-ray and USG and suggestive of rupture with endocyst floating over the fluid.
  4. Medical treatment is considered when surgery is not possible
  5. Ectocyst is not infective
  6. All of the above
A

Meniscus sign is seen when bronchioles are eroded and air enters between pericyst and laminated membrane - S/o of imminent rupture

Ans - all are true

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15
Q

Which of the following is not done in lung hydatid ds.

  1. Cystostomy
  2. Capittonage
  3. Pericystectomy
  4. PAIR
  5. Segmentectomy
  6. Pneumonectomy
A

Ans - PAIR

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