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Penicillin V Allergy IgE Blood Test

The penicillin v allergy IgE blood test measures the amount of allergen-specific IgE antibodies in the blood to detect an allergy to penicillin v.


Test Code: 067116

Also Known As: Penicillin VK; Phenoxymethylpenicillin; Penicillin V (PcV); Penicillin V potassium

Methodology: Thermo Fisher ImmunoCAP

Preparation: No special preparation required.

Test Results: 6-8 days. May take longer based on weather, holiday or lab delays.


Test Code: 703

Also Known As: Penicillin VK; Phenoxymethylpenicillin; Penicillin V (PcV); Penicillin V potassium

Methodology: Immunoassay (IA)

Preparation: No special preparation required.

Test Results: 6-8 days. May take longer based on weather, holiday or lab delays.

Description

Order a penicillin v allergy IgE blood test to detect an allergy to penicillin v. This test measures the amount of allergen-specific antibodies in a blood sample. 

Penicillin V is a slow-onset oral antibiotic used to treat many forms of mild to moderate bacterial infections caused by bacteria, including skin infections, pneumonia, scarlet fever, and nasal, tongue, or throat infections. In addition, penicillin v is used to suppress rheumatic fever symptoms. It works by preventing bacteria from growing. This antibiotic only treats bacterial infections; thus, it does not work for viral infections such as the common cold or flu.

Penicillin V is also used to prevent heart valve infections in individuals with certain heart conditions who need dental work or surgery.

The most common side effects of penicillin v may include:

  • Nausea
  • Upset stomach
  • Vomiting
  • Diarrhea
  • Headache
  • Rash
  • Vaginal itching or discharge
  • Swollen, black, hairy tongue
  • Rash

An allergy to penicillin v triggers a reaction in an individual's immune system. The body views certain substances as toxic and produces IgE antibodies to these contaminants. These antibodies cause histamine to be released, which will cause the symptoms of an allergic reaction.

Allergy symptoms vary from one individual to the next ranging from mild to severe reactions, which can be experienced within minutes to a few hours to weeks after exposure. Common symptoms of a penicillin v allergy may include one or more of the following symptoms:

  • Itching
  • Hives
  • Skin rash
  • Swelling
  • Fever
  • Itchy, watery eyes
  • Runny nose
  • Shortness of breath
  • Wheezing
  • Anaphylaxis

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