What It Measures#
The Post-Prandial Blood Sugar (PPBS) test measures your blood glucose level exactly 2 hours after the start of a meal. It assesses how efficiently your body handles the sugar load from food — specifically, how well your pancreas produces insulin and how sensitive your cells are to it.
While fasting blood sugar tells you about baseline glucose control, PPBS reveals post-meal sugar spikes, which are increasingly recognised as independent risk factors for cardiovascular complications in diabetics.
In many Indian diabetics, fasting sugar may be near-normal while post-meal sugar remains dangerously high — making PPBS a critical complement to fasting tests.
Who Should Get Tested#
- Known diabetics — to evaluate meal-time sugar control and medication effectiveness.
- People diagnosed with pre-diabetes on FBS or HbA1c.
- Pregnant women — as part of gestational diabetes screening.
- Anyone with symptoms of reactive hypoglycaemia (shakiness, sweating, dizziness after meals).
- To monitor the effect of dietary changes on blood sugar.
How to Prepare#
- Eat your usual meal — do not skip or alter your regular diet, as the test aims to capture your typical post-meal response.
- Note the exact time you begin eating.
- The blood sample must be collected exactly 2 hours after the first bite — not earlier, not later.
- Continue your regular medications as prescribed.
Understanding Your Results#
| PPBS Level (2 hours after meal) | Interpretation | |-------------------------------|---------------| | Below 140 mg/dL | Normal | | 140–199 mg/dL | Pre-diabetes / Impaired Glucose Tolerance | | 200 mg/dL or above | Diabetes mellitus |
For known diabetics, the typical PPBS target is below 180 mg/dL, though your doctor may set a stricter or more relaxed target based on your individual profile.
Persistent post-meal spikes above 180 mg/dL, even with acceptable fasting sugar, significantly increase the risk of retinopathy, neuropathy, and cardiovascular events.
Related Tests#
- Fasting Blood Sugar — baseline glucose after overnight fast.
- HbA1c Test — long-term glucose average over 2–3 months.
- Kidney Function Test — sustained hyperglycaemia damages kidneys.
- Lipid Profile — cardiovascular risk assessment in diabetics.
Booking & Home Collection#
Book a PPBS test on PingMeDoc — schedule your sample collection for exactly 2 hours after your meal. Our phlebotomists arrive on time. Digital reports within 6–12 hours.