Quest Diagnostics Ultrasensitive Estradiol Code

[Dr. John Crisler]

The code, and range, provided in this thread:

Suggested Lab Tests and Questions Before and After Initiation of Testosterone Replacement

...needs an edit.


The proper code is 30289, and range is "<29"

(I am unable to reply to that thread directly)

 

[Dr. John Crisler]

The aforementioned thread by Nelson is a great post, emphasizing you MUST run the more sensitive estradiol assay. The standard assay is not valid for adult males, and usually over-estimates the true E concentration. This may lead to inappropriate use of an aromatase inhibitor, to the detriment of the patient.

The Quest Ultrasensitive E2 is the preferred LC/MS laboratory methodology. The LabCorp Sensitive Estradiol is an immunoassay, which is inferior, but my clinical experience shows it is usually okay. LabCorp now has a new line of LC/MS assays for the hormonal assays we need; the specific LabCorp codes for you are here:

Testosterone, Bioavailable w/ SHBG #500650
DHEA-S #500161
Estradiol #500108
Estrone #500634
CBC #005009
Comprehensive Metabolic Panel #322000
FSH and LH #028480
DHT #500142
Prolactin #004465
PSA #010322
Progesterone #500167
Pregnenolone #140707
Ferritin #004598
TSH # 004259
Free T4 #501902
Free T3 #503600
reverseT3 #070104
IGF-1 #010363
IGFBP-3 #140152
Vitamin D, 25-Hydroxy #081950


I prefer the Free T4 and Free T3 assays, as they remove the influences of Thyroid Binding Globulin.

 

[Nelson Vergel]

I will run my estradiol using both labs soon to see what I get. Thanks Dr Crisler!

By the way, your clinic banner is on You searched for 119-affiliates - ExcelMale

We just hired a new designer, so this site will be improved soon!

 

[Dr. John Crisler]

I will run my estradiol using both labs soon to see what I get. Thanks Dr Crisler!

By the way, your clinic banner is on https://www.excelmale.com/?s=119-affiliates&tabid=202

We just hired a new designer, so this site will be improved soon!

Thank you, Nelson! I am honored to be in the presence of such esteemed gentlemen.