Lois is a distraught 44-year-old female visiting her primary care physician at 9:00 a.m. She describes looking in the mirror that morning and seeing a worm crawl across her eye and then disappear. On her updated patient history, she notes she had visited the African rainforest the previous year. The physician orders a stool for ova and parasite examination, as well as a complete blood count and differential. The blood is drawn at 11:30 a.m. on the same day as the office visit at a draw site near Lois’ home. The stool parasite examination proves to be negative. The automated blood count shows increased eosinophils and a Giemsa-stained blood film is prepared. An evening shift medical laboratory scientist observes a worm-like form on the blood smear that is 275 μm in length. There is a stained sheath and nuclei extend to the tip of the tail.1. What is the scientific name of the organism observed?2. What is the significance of her travel history?3. Determine if the blood sample was drawn appropriately.4. Propose treatment options for this individual. CASE STUDY 1Lois is a distraught 44-year-old female visiting her primary care physician at 9:00 a.m. She describeslooking in the mirror that morning and seeing a worm crawl across her eye and then disappear. On herupdated patient history, she notes she had visited the African rainforest the previous year. The physicianorders a stool for ova and parasite examination, as well as a complete blood count and differential. Theblood is drawn at 11:30 a.m. on the same day as the office visit at a draw site near Lois' home. The stoolparasite examination proves to be negative. The automated blood count shows increased eosinophilsand a Giemsa-stained blood film is prepared. An evening shift medical laboratory scientist observes aworm-like form on the blood smear that is 275 μm in length. There is a stained sheath and nuclei extendto the tip of the tail.1. What is the scientific name of the organism observed?2. What is the significance of her travel history?3. Determine if the blood sample was drawn appropriately.4. Propose treatment options for this individual.

Identification of Organism: The scientific name of the organism observed is Loa loa. This…

Answered: CASE STUDY 1 Lois is a distraught…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Lois is a distraught 44-year-old female visiting her primary care physician at 9:00 a.m. She describes looking in the mirror that morning and seeing a worm crawl across her eye and then disappear. On her updated patient history, she notes she had visited the African rainforest the previous year. The physician orders a stool for ova and parasite examination, as well as a complete blood count and differential. The blood is drawn at 11:30 a.m. on the same day as the office visit at a draw site near Lois’ home. The stool parasite examination proves to be negative. The automated blood count shows increased eosinophils and a Giemsa-stained blood film is prepared. An evening shift medical laboratory scientist observes a worm-like form on the blood smear that is 275 μm in length. There is a stained sheath and nuclei extend to the tip of the tail.
1. What is the scientific name of the organism observed?

2. What is the significance of her travel history?
3. Determine if the blood sample was drawn appropriately.

4. Propose treatment options for this individual.

CASE STUDY 1
Lois is a distraught 44-year-old female visiting her primary care physician at 9:00 a.m. She describes
looking in the mirror that morning and seeing a worm crawl across her eye and then disappear. On her
updated patient history, she notes she had visited the African rainforest the previous year. The physician
orders a stool for ova and parasite examination, as well as a complete blood count and differential. The
blood is drawn at 11:30 a.m. on the same day as the office visit at a draw site near Lois' home. The stool
parasite examination proves to be negative. The automated blood count shows increased eosinophils
and a Giemsa-stained blood film is prepared. An evening shift medical laboratory scientist observes a
worm-like form on the blood smear that is 275 μm in length. There is a stained sheath and nuclei extend
to the tip of the tail.
1. What is the scientific name of the organism observed?
2. What is the significance of her travel history?
3. Determine if the blood sample was drawn appropriately.
4. Propose treatment options for this individual.

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

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