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When would you get blood tests if you have food poisoning?

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Blood tests may be ordered if your doctor thinks the infection has spread into the blood. Blood tests can detect the bacteria Listeria monocytogenes and the hepatitis A virus. Specific blood tests can tell how sick you are by looking for inflammation and signs that you’re dehydrated.

SOURCES:

PubMed Health: “Food Poisoning (Foodborne Illness).”

CDC: “Be Food Safe: Protect Yourself from Food Poisoning,” “Salmonella: Diagnosis and Treatment,” “Staphylococcal Food Poisoning,” “Diagnosis and Management of Foodborne Illnesses.”

UpToDate: “Patient education: Food poisoning (foodborne illness) (Beyond the Basics).”

American Family Physician : “Diagnosis and Management of Foodborne Illness,” Evaluation of Nausea and Vomitting.”

Medscape: “Food Poisoning Workup.”

FDA: “Foodborne Illnesses: What You Need to Know.”

Morbidity and Mortality Weekly Repor t: “Diagnosis and Management of Foodborne Illnesses.”

Clinical Microbiology Reviews : “Laboratory Diagnosis of Bacterial Gastroenteritis.”

Reviewed by Sabrina Felson on May 23, 2019

SOURCES:

PubMed Health: “Food Poisoning (Foodborne Illness).”

CDC: “Be Food Safe: Protect Yourself from Food Poisoning,” “Salmonella: Diagnosis and Treatment,” “Staphylococcal Food Poisoning,” “Diagnosis and Management of Foodborne Illnesses.”

UpToDate: “Patient education: Food poisoning (foodborne illness) (Beyond the Basics).”

American Family Physician : “Diagnosis and Management of Foodborne Illness,” Evaluation of Nausea and Vomitting.”

Medscape: “Food Poisoning Workup.”

FDA: “Foodborne Illnesses: What You Need to Know.”

Morbidity and Mortality Weekly Repor t: “Diagnosis and Management of Foodborne Illnesses.”

Clinical Microbiology Reviews : “Laboratory Diagnosis of Bacterial Gastroenteritis.”

Reviewed by Sabrina Felson on May 23, 2019

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How can blood tests help check for food poisoning?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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