A physician investigating unexplained hypercobalaminemia will typically order some combination of the following: Complete blood count (CBC) with differential to check for abnormal red blood cell, white blood cell, or platelet counts Liver function tests (ALT, AST, ALP, bilirubin, albumin) to assess liver health Kidney function tests (creatinine, BUN, estimated GFR) to evaluate renal clearance Peripheral blood smear if a myeloproliferative disorder is suspected Abdominal imaging (ultrasound or CT) if liver or abdominal pathology is a concern Cancer-specific markers or screenings if clinical suspicion warrants them The NIH Office of Dietary Supplements fact sheet notes that observational data from a Danish registry analysis of 757,185 people found the adjusted 1-year cancer risk was 1.74 to 4.72 times higher among those with B12 above 813 pg/mL compared to those in the normal range of 203 to 813 pg/mL

Aftercare Any sort of injection can cause bruising, so doctors recommend icing the area after receiving a glutathione shot (try using a cold pack for 10 to 20 minutes to reduce swelling)
For a broader look at how these compounds support health, see the health benefits of olive oil polyphenols
M.AdamG.et al
After seven days of treatment, increases persisted in substantia nigra (both compacta and reticulata), lateral caudate, accumbens nucleus, and superior olive
Reach out to the care team with any billing questions