Lab Tests Beginning With S

4 tests in the Lab Values reference begin with the letter S. Every name links to a page with its typical adult range in both unit systems, plain-language notes on high and low results, and preparation notes where they apply.

A B C D E F G H I L M N NUMBERS O P R S T U V W Z

Test	Abbr.	Typical range (conventional)	Typical range (SI)
Selenium	Se	70–150 µg/L	0.89–1.90 µmol/L
Sex Hormone-Binding Globulin	SHBG	Male 10–80; Female 20–130 nmol/L	Male 10–80; Female 20–130 nmol/L
Sodium	Na	136–145 mEq/L	136–145 mmol/L
Soluble Transferrin Receptor	sTfR	1.9–4.4 mg/L	1.9–4.4 mg/L

Please note: Reference ranges vary between laboratories, and between the methods and instruments they use — the range printed on your own report is the one your result should be compared with. A result outside the range is not by itself a diagnosis, and a result inside it does not rule out illness. These pages are an educational summary, not medical advice: always discuss your results with the clinician who ordered them, who can interpret them in the context of your health and history.

Lab Tests Beginning With S

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