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ProGRP Unit Converter
Progastrin-Releasing Peptide (ProGRP) is a highly sensitive and specific tumor marker for **Small Cell Lung Cancer (SCLC)**. It is the precursor form of Gastrin-Releasing Peptide (GRP) but is much more stable in the blood, making it suitable for clinical measurement.
ProGRP levels are used to aid in the differential diagnosis of lung cancer (SCLC vs. Non-SCLC) and to monitor treatment response. This converter facilitates switching between the standard reporting units of pg/mL and ng/L.
Common Units
StandardPicograms per milliliter (Numerically equivalent to ng/L).
Other Equivalents
Clinical Context
Reference Values:
• Normal: Typically < 50-65 pg/mL (varies by assay).
• SCLC Cut-off: often set around 150-200 pg/mL for high specificity.
Renal Failure Note: ProGRP is cleared by the kidneys. Patients with renal insufficiency may have falsely elevated ProGRP levels even in the absence of cancer.
Conversion Logic:
1 pg/mL = 1 ng/L.
1 ng/mL = 1,000 pg/mL.
Clinical References
How to Use This Converter
Follow these steps to normalize ProGRP values.
Enter Values
Input your laboratory results into the corresponding unit field (e.g., pg/mL).
Automatic Conversion
The calculator instantly updates all other fields. For ProGRP, pg/mL and ng/L will show the same value.
Check Kidney Function
Interpret results with caution if the patient has renal impairment, as levels may be elevated.
Reset
Use the Clear button to reset all fields.
Frequently Asked Questions
ProGRP is generally considered more specific for Small Cell Lung Cancer (SCLC) than Neuron-Specific Enolase (NSE), especially in early stages.
Yes. 1 picogram per milliliter is numerically identical to 1 nanogram per liter.