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CASE #1. Samuel is a 29-year-old man from Haiti who has been suffering from fever, nausea, vomiting and diarrhea for two weeks. Upon physical examination at the hospital, he is found to have an elevated pulse rate and a lowered blood pressure. He is admitted and placed on an IV drip with antibiotics. Stool and blood cultures are collected that reveal a gram-negative rod, which grows on MacConkey agar as clear colonies (lactose negative). On Salmonella/Shigella plates it produces blacktop colonies. 1. What is the patient infected with? Explain what important factors led you to the diagnosis. 2. How is this bacterium spread? 3. The patient is a cook. What precautions or actions should be taken before he is allowed to return to work?

CASE #1. Samuel is a 29-year-old man from Haiti who has been suffering from fever, nausea, vomiting and diarrhea for two weeks. Upon physical examination at the hospital, he is found to have an elevated pulse rate and a lowered blood pressure. He is admitted and placed on an IV drip with antibiotics. Stool and blood cultures are collected that reveal a gram-negative rod, which grows on MacConkey agar as clear colonies (lactose negative). On Salmonella/Shigella plates it produces blacktop colonies. 1. What is the patient infected with? Explain what important factors led you to the diagnosis. 2. How is this bacterium spread? 3. The patient is a cook. What precautions or actions should be taken before he is allowed to return to work?

Phlebotomy Essentials
Phlebotomy Essentials
6th Edition
ISBN:9781451194524
Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Chapter1: Phlebotomy: Past And Present And The Healthcare Setting
Section: Chapter Questions
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CASE #1. Samuel is a 29-year-old man from Haiti who has been suffering from fever, nausea, vomiting and diarrhea for two weeks. Upon physical examination at the hospital, he is found to have an elevated pulse rate and a lowered blood pressure. He is admitted and placed on an IV drip with antibiotics. Stool and blood cultures are collected that reveal a gram-negative rod, which grows on MacConkey agar as clear colonies (lactose negative). On Salmonella/Shigella plates it produces blacktop colonies. 1. What is the patient infected with? Explain what important factors led you to the diagnosis. 2. How is this bacterium spread? 3. The patient is a cook. What precautions or actions should be taken before he is allowed to return to work?
Transcribed Image Text:CASE #1. Samuel is a 29-year-old man from Haiti who has been suffering from fever, nausea, vomiting and diarrhea for two weeks. Upon physical examination at the hospital, he is found to have an elevated pulse rate and a lowered blood pressure. He is admitted and placed on an IV drip with antibiotics. Stool and blood cultures are collected that reveal a gram-negative rod, which grows on MacConkey agar as clear colonies (lactose negative). On Salmonella/Shigella plates it produces blacktop colonies. 1. What is the patient infected with? Explain what important factors led you to the diagnosis. 2. How is this bacterium spread? 3. The patient is a cook. What precautions or actions should be taken before he is allowed to return to work?
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