MCQS 268-270 :Choose the most appropriate investigation for the following organisms:Entamoeba histolytica

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Question:268
Choose the most appropriate investigation for the following organisms:Entamoeba histolytica

a) Visual stool examination
b) Visual sputum examination
c) buccal mucosa examination
d) rectal biopsy
e) Antibody detection
f) Skin test
g) Wet mount of vaginal discharge
h) early morning urine sample
i) cerebro-spinal fluid sample
j) mid-day urine sample

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Question:269
A 34 year old African lady in the third trimester of her pregnancy complains of an ulcer on her vulva. On inspection the ulcer was noted to be superficial with a rolled border and a friable, granulation tissue-like base raised above the skin surface. The ulcer was noted to bleed on palpation. There was no evidence of inguinal lymphadenopathy. Smears from the lesion are likely to reveal

a) ferruginous bodies
b) amyloid deposits
c) Streptococcal laden macrophages
d) Heberden's nodes
e) Foamy macrophages
f) amyloid material
g) acid fast bacilli
h) Aschoff bodies
i) myelin plaques
j) Donovan bodies

Question:270
INR: Elevated APTT: Increased Thrombin time: Normal Platelet count: Normal Bleeding time: Normal A likely aetiology is

a) Waldenström's macroglobulinaemia
b) Heparin
c) Sézary cell leukaemia
d) Pelger-Hüet anomaly
e) von Willebrand's disease
f) Haemophilia
g) HIV infection
h) Disseminated intravascular coagulation
i) Acanthocytosis
j) Vitamin K deficiency


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