Fasting Insulin for Type 2 Diabetes
The fasting insulin is among the laboratory tests healthcare providers may use to investigate Type 2 Diabetes. Learn what it measures, how to prepare, and what results can tell a provider. Educational content only - not a diagnosis.
Order a Fasting Insulin Test
Lab testing is available through our partner network. Order online and visit a local collection site. No doctor's order or insurance required.
- Sample type
- Blood
- Typical turnaround
- 1-3 business days
- Preparation
- Fasting for 8-12 hours required.
Why the fasting insulin may be ordered for Type 2 Diabetes
Measures insulin levels to help assess insulin resistance.
When evaluating Type 2 Diabetes, a healthcare provider may order the fasting insulin alongside other tests based on your symptoms, history, and physical exam. Test selection and result interpretation are clinical decisions made by a qualified professional.
Symptoms associated with Type 2 Diabetes
Blurred vision
Lack of sharpness of vision resulting in the inability to see fine detail....
Excessive Thirst
An abnormal or excessive feeling of thirst that persists even after drinking fluids, which can be a sign of hi...
Fatigue
A subjective feeling of tiredness characterized by a lack of energy and motivation....
Frequent Infections
Experiencing infections more often than usual, which can be a sign of immune, metabolic, or other conditions....
Frequent Urination
The need to urinate more often than usual, which can be a sign of diabetes, urinary tract infection, enlarged ...
Increased body weight
Abnormally increased body weight....
Poor appetite
A reduced desire to eat....
Slow Wound Healing
Wounds that heal more slowly than expected, which can be related to high blood sugar, poor circulation, or imm...
Waking to Urinate at Night
The need to wake up during the night to urinate, which can disrupt sleep and may be linked to bladder, prostat...
Weight loss
Reduction of total body weight....
Other tests used to investigate Type 2 Diabetes
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Basic Metabolic Panel (BMP)
Measures glucose, electrolytes, and kidney function markers....
Comprehensive Heart Health Panel
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Comprehensive Metabolic Panel (CMP)
Measures 14 substances in the blood to assess kidney and liver function, electrolyte balance, and blood sugar ...
Fasting Glucose
Measures blood sugar after fasting to screen for diabetes and prediabetes....
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General Health & Wellness Testing
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General Health & Wellness Tests
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Frequently Asked Questions
Is the fasting insulin used to investigate Type 2 Diabetes?
Yes - the fasting insulin is among the tests healthcare providers may consider when evaluating Type 2 Diabetes. Measures insulin levels to help assess insulin resistance. Test selection is a clinical decision made by a qualified professional.
How should I prepare for the fasting insulin?
Fasting for 8-12 hours required.
How long does the fasting insulin take?
Results for the fasting insulin are typically available within 1-3 business days depending on the laboratory.
Does this website interpret my fasting insulin result?
No. SymptomDatabase.com does not interpret laboratory results. Discuss all results with a qualified healthcare provider.