Everyone feels tired from time to time.

A busy schedule, lack of sleep, stress, travel, work, family responsibilities, or changes in routine can all affect energy levels.

But when fatigue becomes persistent or noticeably different from your normal energy level, it may be worth discussing with your healthcare provider.

Laboratory testing is one tool that may help provide useful information.

Fatigue Can Have Many Possible Causes

There is no single “fatigue test.”

Several different health factors can potentially contribute to how energetic—or exhausted—you feel.

Depending on your symptoms and medical history, your healthcare provider may consider markers related to:

  • Thyroid function
  • Iron and ferritin
  • Vitamin B12
  • Vitamin D
  • Blood sugar
  • Hormones
  • Metabolic health
  • Other laboratory findings

That doesn’t mean fatigue automatically indicates a deficiency or medical condition.

It means there are measurable health markers that may help inform the discussion.

Iron and Ferritin

Iron plays an important role in the body’s ability to carry oxygen.

Ferritin is related to the body’s stored iron.

When appropriate, measuring these values can provide information your healthcare provider can use alongside your symptoms and medical history.

Vitamin B12 and Vitamin D

Vitamin levels are another area that may be considered when evaluating overall wellness.

MedDraw offers individual Vitamin D and Vitamin B12 testing, as well as an Iron & Ferritin Panel and Nutritional Wellness Panel. My Med Draw

What About Thyroid Testing?

Thyroid hormones influence many processes within the body.

MedDraw offers both basic and comprehensive thyroid testing options. My Med Draw

If you’re experiencing persistent fatigue or other changes in how you feel, your healthcare provider can help determine whether thyroid-related testing is appropriate.

Stress and Sleep Matter Too

Laboratory information is only one piece of the puzzle.

Sleep quality, stress, activity level, nutrition, medication, and other factors can influence energy.

That’s why results should be considered in context rather than treated as a diagnosis by themselves.

Take the Next Step

If you have been wondering whether certain health markers may be worth checking, laboratory testing can give you additional information to discuss with your healthcare provider.

At MedDraw, we make the collection process straightforward, professional, and patient-centered.

[Explore Lab Testing](/order-lab-tests/)

Persistent or severe fatigue should be discussed with a qualified healthcare provider. Laboratory testing alone cannot determine the cause of fatigue.