2 Questions of Final Examination PART I: MCQ (number 60) total marks (30).PART II: 3 CASES (EACH CASE 3 MCQ) 3X3 = total marks (4.5).PART III: 10 TRUE & FALSE (number 10) total marks (5).PART IV: SHORT QUESTION (number 4) total marks (10.5).
11 A male patient 36 years old from presented to the dermatology clinic with an ulcer on his face. The ulcer had sharp cut edges, raised indurated margin and scanty exudate. The patient gave a history of a nodule at the site of the lesion several months ago.
12 1- If the lesion is due to a parasitic infection, what is the most likely diagnosis? (1mark) 2- Mention 2 methods by which the diagnosis could be confirmed. Explain the findings (3marks)3- What is the extent of acquired immunity in this condition and what is the prognosis of this infection if untreated? (1mark)4-Mention 2 similar parasites present in other geographical areas and describe their clinical picture (3 marks)
14 A young child complained of difficulty in breathing A young child complained of difficulty in breathing. His mother took him to the chest clinic seeking medical advice. The doctor diagnosed the condition as a case of bronchial asthma.
16 1-Mention 2 laboratory findings that confirm congenital toxoplasmosis (2marks) 2-What are the malarial infections that could relapse and what is the cause of this relapse (2marks)
17 SHORT ANSWER QUESTIONS 3-Mention 2 medical importance of each the following:a-water Cyclopsb-fleasc-female culex mosquitod-house dust mite
18 3-Explain how Naegleria fowleri and Acanthamoeba reach the brain (2Marks) 5-Mention one helminthic and one protozoal infection that could be transmitted by consumption of meat , mention the infective stage in each (2marks)6-Describe the pathogenesis of bilharzial cor pulmonale (2marks)
21 1-Match the following with its infective stage: a- schistosoma encysted metacercariab-malaria embryonated eggc-Ascaris cercariad-Giardia lamblia oocyste-Cryptosporidium 5-sporozoite6-filariform larva7-cyst
22 2-Match the following with its corresponding parasite: a- creeeping eruption 1-Loa loab-larva currens Onchocerca volvulusc-calabbar swelling Strongyloidesd-Sowda Ancylostomae- ground itch cutaneous larva migrans6-leishmania7-Schistosoma
23 2-Match the following with its habitat: a-Giardia lamblia CNSb-Balantidium coli urogenital tractc-Malaria bloodd-Acanthamoeba small intestinee-Trypanosoma gambiense 5-eye6-skeletal muscles7-large intestine
24 Match the following (2.5marks) 1-Accidental myiasis a- Trypanosoma brucei2-Vagabond′s disease b-Stomoxys calcitrans3-Megaoesophagus c-Pediculus humanus4-Nephrotic syndrome d-Trypanosoma cruzi5-Deep coma e- Plasmodium ovalef- Plasmodium malariaeg-Tunga penetrans
25 Match the following (2.5marks) 1-Meningoencephalitis a- Enterobius vermicularis2-Dysentery b- House dust mites3-Appendicitis c- Naegleria fowleri4-Perinnial rhinitis d- Trichuris trichiura5-Malabsorption e- Wuchereria bancroftif- Capillaria philippinensisg-Paragonimus westermani
28 MCQs 1-Fleas transmit all of the following except: a-epidemic typhus b-endemic typhusc-plagued-Hymenolepis diminuta2-Smear taken from the edge of oriental sore reveals:a-amastigoteb-epimastigotec-promastigoted-trypomastigote
29 3-Contaminated food is the cause of infection with: a-Schistosomab-Leishmaniac-Ancylostomad-Hydatid cyst4-Myiasis is invasion of human tissue by:a-larva of Pulexb-larva of Sarcophagac-larva of Aedesd-larva of Dracunculus medinensis
30 5- Cyst of Toxoplasma is found in: a-Stool of catb-skeletal muscle of sheepc-infected bloodd-all of the above6- Man acts as intermediate host in:a-Taeniasis saginatab-cysticercosisc-Diphillobothriasisd-Dipylidiasis
31 20- Infection with scabies is through: a- Ingestion of larvaeb- Close contactc- Ingestion of eggsd- Droplet infection21-The following helminthic infection is transmitted by arthropod:a- Leishmania donovanib- Plasmodium falciparumc- Dipylidium caninumd-Echinococcus granulosus
32 22-Macrocytic anaemia occur in the following infection: a- Schistosomiasisb- Trichuriasisc- Ancylostomiasisd- Ascariasis23- Sporulated oocysts pass in human stool in :a- Toxoplasmosisb- Cryptosporidiosisc- Cyclosporiasisd- Microsporidiosis
33 24- Eating contaminated raw vegetables can cause: a- Fascioliasisb- Taeniasisc- Heterophyiasisd- Diphyllobothriasis25- Transmission of diseases by Musca domestica is:a- Direct mechanicalb- cyclodevelopmentalc- Indirect mechanicald- Transovarian
34 26-Skin test in case of oriental sore : a- Is positive in 95% of casesb- Is negative during infection and positive after treatmentc- Is negative in 95% of casesd- The antigen used is prepared from amastigotes
35 27-Absence of Duffy antigen on red cells protects against: a- Plasmodium vivaxb- Plasmodium ovalec- Plasmodium falciparumd- Plasmodium malariae28- Fleas transmit the following disease:a- Epidemic typhusb- Endemic typhusc- Scrub typhusd- Rocky mountain spotted fever
36 29- Cysts of Toxoplasma occur in: a- Stool of catb- Stool of manc- Human braind- Infected blood30- In tropical pulmonary eosinophilia:a- There is increase number of microfilaria in bloodb- Absence of microfilaria in the tissuesc- Elevated titre of antifilarial antibodiesd- Slight increase in eosinophilia