The title of this NACBLOG post is a question that was recently posted on the AACC chemistry list serv. Does Circadian Rhythm Impact Fasting Blood Glucose Testing? What is your response? Check back for our response on Monday, April 30, 2012. Yes, circadian rhythm does impact fasting plasma glucose ...(Read More)

​Serum thyroglobulin (Tg) measurement is used in the follow-up of patients with differentiated thyroid cancer following total thyroidectomy and radioactive iodine ablation. In athyrotic patients, thyroglobulin is an excellent tumor marker because it is produced exclusively by the follicular cells o...(Read More)

​Pseudohyperkalemia has been defined as a marked increase of in vitro serum potassium levels in the absence of clinical evidence of electrolyte imbalance. So while true hyperkalemia is a potentially life-threatening clinical condition needing immediate medical intervention, pseudohyperkalemia exhib...(Read More)

​On February 9, 2012, the following question was posted on AACC's chemistry list-serv: "Would like to know what others are using for critical low value for Glucose." Part of the discussion addressed neonatal hypoglycemia. Below is my contribution to that discussion.The definition of hypog...(Read More)