Summary
Helminthic Infections Intestinal Nematodes Disease Summary 2022
- Course
- Institution
Helminthic Infections Intestinal Nematodes Disease Summary 2022
[Show more]
Seller
Follow
rileysingh03
Content preview
Helminthic Infections: Intestinal NematodesNematodes are elongated, symmetrical roundworms. These can be classified as either intestinal
or tissue nematodes. Intestinal nematode species include nematodes, Enterobius vermicularis,
Trichuris trichuira, Ascaris lumbricoides, Necator americanus, and Ancylostoma duodenale.
Worldwide, more than 1 billion people are infected with one or more of his 4,444 species of
intestinal nematodes. They are most common in areas with poor sanitation and are especially
found in developing countries.
Ascariasis
Ascariasis is an infection caused by roundworms. Ascariasis is common worldwide, especially in
areas with poor sanitation. Children often get ascariasis from ingesting embryonated eggs.
Adults live in the lumen of the small intestine, especially in the jejunum. eggs enter the external
environment with feces. When ingested, these eggs hatch into and release tiny larvae that
quickly enter the blood vessels and lymphatics of the intestinal wall. Some larvae reach the
portal circulation and are carried to the liver. Others pass through the thoracic duct. It is filtered
from the bloodstream and reaches the lungs (lung stage). After an increase in size, they migrate
to the epiglottis and down the esophagus to reach's intestines, where mating takes place.
Clinical Features
• An unproductive cough and burning sensation, which may cause significant discomfort. Fever
is common at this stage.
• In established infections, patients are often asymptomatic.
• Serious infections, especially in children, large boluses of worms can cause pain and small
bowel obstruction, chronic abdominal discomfort, and growth retardation. Large nematodes
can enter and obstruct the biliary system, causing biliary colic, cholecystitis, and pancreatitis.
Diagnosis: Most cases of ascariasis can be diagnosed by microscopic detection of characteristic
roundworm eggs in feces.
Treatment:
Mebendazole 100 mg twice daily for 3 days
Piperazine 75 mg/kg (maximum 3.5 g) once daily for 2 days Pyrantelpamoate 10 mg/kg once
Albendazole 400 mg once is also valid.
Hookworm
An infection caused by two species of hookworms, Ancylostoma duodenale, and Necator
americanus. Worldwide distribution, however, older children have the highest incidence and
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller rileysingh03. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $2.95. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
73314 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now
Recently viewed by you
