Doctor s’ Notes
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تحتوي القناة ع ملاحظات دكاترة الكلية |56
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Microbiology & parasitology Simplified 🦠
Trichomonas vaginalis A-F.pdf
شيتات للpara من إعداد زميلتنا عدن،الشيتات نفس شيتات الكلية بالضبط غير بطريقة منظمة أكثر ،تقدروا تعتمدوا عليهم،وكُل ما تكملوا شيت تلقوها حاطة ف نهايته أسئلة من أسئلة الدفعات يلي فاتت يلي جاية عليه،والمحاضرات يلي فيهم كوز حاطة أسئلة الكوز نهاية الشيت⤴️.
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#PA240
تجميعات:
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نصفي55.pdf
4.1 MB
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تجميعة مقسمة⬇️:
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Forwarded from Nada Nouri
المحاضرة الخامسة • para
Trichomonas vaginali
🔴Keywords in cases
Itching , frothy discharge , strawberry appearance + sever pruritic vaginitis
🔴If the female is pregnent cause pre-term-labour
🔴Culture - gold standard
🔴Both sexual partners must be treated
🔴Life cycle -> one stage -> trophozoites
صفحة 7 الجدول مش مطالبين بيه هلبا , مش حتجيبه ك cases❌ (بس قراته الجدول للعلم)

Leishmania
🔴Haemoflagellates -> digenetic -> must have "two host"
🔴Amastigote -> no flagellum
Promastigote -> flagellum in anterior
Epimastigote -> flagellum in superior
Trypomastigote -> flagellum in posterior
🔴 visceral leshmaniasis = l.donovani donovani in africa and asia not donovani chagasi
🔴Human are Accidental Host
🔴Transmission -> Only via the Sandfly bite, it is not transmitted by direct contact
🔴About leshmania true except ?
1- Infective stage seen in culture
2-Diagnostic stage seen in macrophage
3-Promastigote seen only in vector ❌
In culture and vector ✅
🔴Pathogenesis “مش مطالبين بيها هلبا
🔴Wet and dry lesion ✅✅
🔴Espundia (Mucocutaneous Leishmaniasis)
🔴 Visceral Leishmaniasis-> Pancytopenia : keyword in cases
CBC shows : Thrombocytopenia , Leukopenia and Normocytic Normochromic Anemia
🔴 Dysentery = Large Intestine
اي سؤال فيه dysentery نستبعدو اي parasite في ال small intestine
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Forwarded from Nada Nouri
المحاضرة السادسة • Para
Trypanosoma brucei
🔴All parasites obligate intracellular except ?
Trypanosomiasis brucei ->extracellular✅
🔴It Differntiates from trypanosoma cruzi by being polymorphic
🔴Diagnostic stage = polymorphic trypomastigoid , Not monomorphic❌
🔴Pathogenesis by variable surface glygoprotein antigen (VSG)✅
🔴Poor people examined with posterior cervical triangle (winterbottom sign)
Rhodesiense -> more zoonotic subspecies
🔴Stage | hemo-lymphatic stage
Stage || cns development
🔴Parasites Examind with blood film ?
Malaria , tryponosama , leishmania

Trypanosoma cruzi
🔴Monomorphic -> c ,u or s shaped
🔴Mood of transmition -> contaminated with reduviid bugs by the feces (posterior station) , in Trypanosoma brucei occurs via saliva during tsetse fly bite (anterior station)
🔴Xenodiagnosis
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Para|ملاحظات المحاضرة السابعة

🔴Merozoite: These are the daughter cells produced within the schizont. When the schizont ruptures, these merozoites are released to infect new red blood cells.

🔴 most malaria parasites immediately become active merozoites, two specific species—P. vivax and P. ovale—can remain dormant in the liver
In this inactive state, they are called hypnozoites.❗❗Mcq❗❗.

🔴P.malariae the Trophozoite is band shape ,but the Trophozoite in p.falciparum is not seen in perepheral blood.

🔴Clinical Diagnosis of Malaria
The first and most crucial step in diagnosing Malaria is taking a detailed travel history from the patient to determine if they have recently visited an endemic area.

🔴In blood transfusion-induced malaria, all asexual stages are infective except :
1-Gametocytes are not infective: Although they are present in the blood, they do not cause malaria in the recipient because their role is strictly for sexual reproduction, which only occurs in the mosquito's gut, not in human blood.
2.Sporozoites: Unlike a mosquito bite, blood transfusion does not involve sporozoites.
_Direct Blood Infection: Because only the erythrocytic (blood) stages are transferred, the parasite bypasses the liver stage entirely.

🔴If a person in Libya contracts malaria without having traveled abroad, the most likely non-mosquito-borne causes are indeed blood transfusions or the sharing of needles (intravenous drug use).

🔴Malaria Transmission Stages
-Infection of Humans (Natural):
The Sporozoite is the infective stage for humans. This occurs when an infected female Anopheles mosquito bites a person and injects these stages from her salivary glands into the bloodstream.

_Infection of Mosquitoes:
The Gametocyte is the infective stage for the mosquito. When a mosquito bites an infected human, it ingests male and female gametocytes, which then begin the sexual reproduction cycle inside the mosquito's gut.

_Infection via Blood Transfusion (Induced Malaria):
In the case of a blood transfusion from an infected donor, the infection is passed through Erythrocytic stages (merozoites or trophozoites already living in the red blood cells).
Crucial Note: In this scenario, Sporozoites are absent (because they only come from the mosquito) and Gametocytes are not the ones responsible for continuing the cycle in the new human host.
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ف الملاريا الدكتورة قالت الأدوية حفظظ💊

ولكن الDose زي مثلاً (0.25-0.5mg/kg/day) قالت متجيبش فيهم
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جزئية الImmunity to Malaria✨ قالت الدكتورة متجيبش فيها✨.
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