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.