Dr. Holly Johnston 

Laboratory Testing

Dr. Holly frequently uses laboratory testing to help her understand the cause of your symptoms.

 

Some of the tests that Dr. Holly may suggest are:

• Thyroid Hormone Profile

• Nutrient Level Testing (iron, vitamin B12, vitamin D, zinc)

• Food Intolerance Testing (IgG/IgE/IgA food sensitivity testing)

• Cardiovascular Profile 

• Salivary Hormonal Testing (cortisol, DHEA, female & male hormones)

• Blood Hormonal Testing (DHEA, insulin, male & female hormones)

• Urinary DUTCH Hormonal Testing

• Digestive Stool Analysis + Parasitology

• Urinary Organic Acid Testing

• SIBO Breath Testing

• Stool Microbiology