Growth Promotion Test Quiz

by | Clinical, Food, Pharmaceutical, Quizzes, Water | 4 comments

Publish Date: May 30, 2019

Microbiologics offers four unique QC microorganism products designed specifically for GPT that provide 10-100 CFU per 0.1 ml of hydrated suspension as required by USP guidelines. Learn more.

Visit our website for helpful technical documents and instructional videos including a step-by-step tutorial on how to use EZ-Accu Shot™. For more GPT advice, check out our 8 Best Practices for Growth Promotion Testing9 Tips for Growth Promotion Testing on Selective Media, and Growth Promotion Best Practices Auditors are Looking for in Pharmaceutical Labs.

Read Next – Non-Sterile Pharmaceuticals: Next Steps After Finding an Environmental Isolate

Written by Microbiologics

Microbiologics is the foremost biological products and services provider, focused on protecting the health and safety of people around the world. For over 50 years, they have been partnering with healthcare and life science laboratories, manufacturers and suppliers across the globe to co-create and provide biological control materials, assay services and consulting for microbiology, molecular diagnostics and virology. Headquartered in Saint Cloud, Minnesota, the company has additional facilities in California, Kentucky and Michigan. Microbiologics has advanced industry standards for biological controls by adopting the most rigorous testing and quality standards including ISO 13485, ISO/IEC 17025, and ISO 17034. The company has an extensive distribution network spanning over 150 countries. For more information, visit

You May Also Like


  1. Liz Coffee

    Great quiz for a basic comprehensive knowledge of GPT and a fantastic tool for education and training. Thank you for putting this together!

  2. Candy

    I do not remember what is GPT. Took the test and did ok. Nonetheless, awesome way to engage people who enjoy a challenge and learning! Thanks again.

  3. Roselin Susanna Kaushal

    Could you please advice me were to find the reference expected zone size for different antibiotic for the ATCC 11229 E. coli, ATCC 8427 Proteus vulgaris, ATCC 15442 Pseudomonas aeruginosa, ATCC 9144 Staph aureus, ATCC 29212 Enterococcus faecalis,

Share This