A high or low anion gap is a calculated clue from an electrolyte or metabolic panel. Learn what it can mean, why lab ranges vary, when it may be urgent, and what follow-up tests often help clarify the result.
A CO2 or bicarbonate blood test helps show whether your body is keeping acid and base in balance. Learn what high and low results can mean, what to check next, and when to follow up.
A high or low calcium blood result can point to parathyroid, vitamin D, kidney, medication, or albumin-related issues. Learn how to interpret total calcium, corrected calcium, ionized calcium, symptoms, follow-up tests, and next steps.
