Davis's Lab & Diagnostic Tests
Estradiol
To view the entire topic, please log in or purchase a subscription.
Nursing Central is an award-winning, complete mobile solution for nurses and students. Look up information on diseases, tests, and procedures; then consult the database with 5,000+ drugs or refer to 65,000+ dictionary terms. Explore these free sample topics:
-- The first section of this topic is shown below --
General
Synonym/Acronym:
E2.
Rationale
To assist in diagnosing female fertility problems that may occur from tumor or ovarian failure.
Patient Preparation
There are no food, fluid, activity, or medication restrictions unless by medical direction.
Normal Findings
Method: Liquid chromatography/mass spectrometry.
| Age | Conventional Units | SI Units (Conventional Units × 3.67) | |||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12 mo–10 yr | |||||||||||||||||||||||||||||||||||||||||
| Male and female | Less than 17 pg/mL | Less than 62.4 pmol/L | |||||||||||||||||||||||||||||||||||||||
| 11–15 yr | |||||||||||||||||||||||||||||||||||||||||
| Male | Less than 40 pg/mL | Less than 147 pmol/L | |||||||||||||||||||||||||||||||||||||||
| Female | Less than 300 pg/mL | Less than 1,100 pmol/L | |||||||||||||||||||||||||||||||||||||||
| Adult male | Less than 50 pg/mL | Less than 184 pmol/L | |||||||||||||||||||||||||||||||||||||||
| Adult female | |||||||||||||||||||||||||||||||||||||||||
| Early follicular phase | 20–150 pg/mL | 73–551 pmol/L | |||||||||||||||||||||||||||||||||||||||
| Late follicular phase | 40–350 pg/mL | 147–1,285 pmol/L | |||||||||||||||||||||||||||||||||||||||
| Midcycle peak | 150–750 pg/mL | 551–2,753 pmol/L | |||||||||||||||||||||||||||||||||||||||
| Luteal phase | 30–450 pg/mL | 110–1,652 pmol/L | |||||||||||||||||||||||||||||||||||||||
| Postmenopause | Less than 20 pg/mL | Less than 73 pmol/L | |||||||||||||||||||||||||||||||||||||||
| Levels for males and females are elevated at birth but decrease in a few days to prepubertal values. Levels vary significantly during the female menstrual cycle. | |||||||||||||||||||||||||||||||||||||||||
Critical Findings and Potential Interventions
N/A
-- To view the remaining sections of this topic, please log in or purchase a subscription --
General
Synonym/Acronym:
E2.
Rationale
To assist in diagnosing female fertility problems that may occur from tumor or ovarian failure.
Patient Preparation
There are no food, fluid, activity, or medication restrictions unless by medical direction.
Normal Findings
Method: Liquid chromatography/mass spectrometry.
| Age | Conventional Units | SI Units (Conventional Units × 3.67) | |||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12 mo–10 yr | |||||||||||||||||||||||||||||||||||||||||
| Male and female | Less than 17 pg/mL | Less than 62.4 pmol/L | |||||||||||||||||||||||||||||||||||||||
| 11–15 yr | |||||||||||||||||||||||||||||||||||||||||
| Male | Less than 40 pg/mL | Less than 147 pmol/L | |||||||||||||||||||||||||||||||||||||||
| Female | Less than 300 pg/mL | Less than 1,100 pmol/L | |||||||||||||||||||||||||||||||||||||||
| Adult male | Less than 50 pg/mL | Less than 184 pmol/L | |||||||||||||||||||||||||||||||||||||||
| Adult female | |||||||||||||||||||||||||||||||||||||||||
| Early follicular phase | 20–150 pg/mL | 73–551 pmol/L | |||||||||||||||||||||||||||||||||||||||
| Late follicular phase | 40–350 pg/mL | 147–1,285 pmol/L | |||||||||||||||||||||||||||||||||||||||
| Midcycle peak | 150–750 pg/mL | 551–2,753 pmol/L | |||||||||||||||||||||||||||||||||||||||
| Luteal phase | 30–450 pg/mL | 110–1,652 pmol/L | |||||||||||||||||||||||||||||||||||||||
| Postmenopause | Less than 20 pg/mL | Less than 73 pmol/L | |||||||||||||||||||||||||||||||||||||||
| Levels for males and females are elevated at birth but decrease in a few days to prepubertal values. Levels vary significantly during the female menstrual cycle. | |||||||||||||||||||||||||||||||||||||||||
Critical Findings and Potential Interventions
N/A
There's more to see -- the rest of this topic is available only to subscribers.
