About this case study: it is based on a business typical of the ones we work with, not a named client, and every number comes from the assumptions at the end of the page. Swap in your own and the sums still work.
The problem
About 180 patients a day. Many call once or twice to ask whether the report is ready. Printouts are kept at the counter for collection.
Around 40 home collections a day are booked by phone, written in a register and handed to phlebotomists in the morning.
What we build
- 1
Reports sent on sign-off
When the pathologist signs off a report in the lab software, the patient gets a WhatsApp message with a secure link to the PDF.
- 2
Home collection booking
Patients book a slot online or on WhatsApp, with the address and tests. Fasting instructions go out the evening before.
- 3
Routes for phlebotomists
Each phlebotomist gets the day's list in area order with map links, and marks each collection done.
Before and after
| Step | Before | After |
|---|---|---|
| "Is my report ready?" calls | About 120 a day | Rare |
| Booking a home collection | About 5 minutes on the phone | Patient books |
| Phlebotomist route | Paper list | Phone list in area order |
Where a person stays in control
Only signed-off reports are sent, through a secure link, to the number registered at billing. Doctors still call patients about critical values.
Running cost
Roughly ₹4,000–7,000 a month for messages, secure storage and hosting.
Tools
- Lab information system
- WhatsApp Business API
- Online booking form
- n8n
How the numbers work
- 120 report calls a day at 1.5 minutes ≈ 3 hours × 26 days = 78 hours; we assume 90% go away ≈ 70 hours.
- 40 home collections a day; an online booking saves about 4 minutes, and we assume a third of patients book online at first: 40 × 4 min × 26 ÷ 3 ≈ 23 hours.
- Front-desk time costed at ₹300 an hour: 93 × ₹300 = ₹27,900.
Estimates, not promises. Use the savings calculator with your own hours and costs.
Want this for your business?
A free 30-minute call is enough to tell whether it fits, what it would take and what it would cost.

