What to Expect After You Book a Quest Diagnostics Appointment

What your confirmation tells you

When Quest Diagnostics sends you a confirmation after you book an appointment, it contains the specific details you need to show up at the right place and time. The confirmation includes your appointment date and time, the location address, your confirmation number, and which tests your doctor ordered. Keep this confirmation — you'll need to bring it or reference the confirmation number when you arrive.

The confirmation also tells you whether you need to prepare beforehand. Some tests require fasting (usually 8 to 12 hours without food or drink), while others have no preparation. If your confirmation doesn't mention preparation, check the Quest website using your confirmation number, or call the location directly to confirm what, if anything, you should do before your visit.

Quest sends confirmations by email, text, or both, depending on how you booked and what contact method you provided. If you don't receive a confirmation within a few minutes of booking, check your spam folder or log into your Quest account online to view your appointment details there.

Key Takeaways

• Your confirmation number is the fastest way to reference your appointment if you need to reschedule, cancel, or call the location with questions.
• The confirmation lists which tests are ordered, so you can verify they match what your doctor discussed with you before your visit.
• Fasting instructions, if required, appear in the confirmation or on the Quest website — check before your appointment so you don't have to reschedule.
• Bring your confirmation, insurance card, and photo ID to your appointment; the confirmation can be on your phone or printed.

How to find your confirmation if you didn't receive it

If the email or text didn't arrive, log into your Quest account on the Quest Diagnostics website or mobile app. Your upcoming appointments appear in the "My Appointments" section, and you can view all the same details that would have been in the email. This is also where you can check the status of any tests you've already completed.

If you booked by phone or in person at a Quest location, you may have been given a printed confirmation slip at the time. Check your wallet, car, or the email address you gave when you booked. If you still can't locate it, call the Quest location where your appointment is scheduled — they can pull up your appointment using your name and date of birth and print a new confirmation or read the details to you over the phone.

What information you need to bring

Bring your confirmation (printed or on your phone), your insurance card, and a photo ID. Quest accepts most major insurance plans, but your confirmation doesn't always show your coverage details. Bringing your insurance card lets the location verify coverage and process any copay or coinsurance at check-in rather than after your tests.

If you're paying out of pocket, ask the location about the cost when you call to confirm fasting instructions. Quest publishes cash prices on their website, but they vary by location and test type. Knowing the cost ahead of time prevents surprises at checkout.

Rescheduling or canceling using your confirmation number

Your confirmation number is the quickest way to reschedule or cancel. Log into your Quest account and select your appointment, then choose "Reschedule" or "Cancel." You can also call the location directly and give them your confirmation number — they'll pull up your appointment immediately without asking you to spell out your name or repeat your date of birth.

If you need to reschedule because of a fasting requirement you didn't know about, or because you realized you can't fast before your appointment, call as soon as you know. Quest locations often have same-day or next-day openings, especially for routine blood work. Canceling or rescheduling online is usually instant, but calling gives you a chance to ask about the soonest available time.

Understanding fasting and preparation instructions in your confirmation

If your confirmation says "fasting required," it means no food, beverages other than water, gum, or tobacco for the hours listed — typically 8 to 12 hours before your blood draw. Fasting is required for tests that measure glucose, cholesterol, or triglycerides, because eating changes these values. If you eat or drink anything other than water before a fasting test, the results may be inaccurate and your doctor may ask you to return for a repeat test.

Some tests have other preparation steps. For example, certain tests may ask you to avoid specific medications or supplements for a set time before your visit. Your confirmation or the Quest website will list these. If you're unsure whether a medication counts, call the location — they can tell you whether to take it the morning of your appointment or skip it that day.

If you realize you can't follow the preparation instructions, reschedule rather than showing up unprepared. A test done without proper fasting or preparation may give a false result, which means your doctor gets inaccurate information and you may need to come back.

What happens at check-in with your confirmation

When you arrive, give your confirmation number to the person at the front desk, or let them scan the barcode on your printed confirmation. They'll verify your identity, confirm your insurance, and ask you to sign consent forms if you haven't already. The whole check-in usually takes 5 to 10 minutes.

After check-in, you'll wait in the drawing area until a phlebotomist calls your name. Bring your confirmation into the drawing room with you — the phlebotomist will verify your name and date of birth against it to make sure they're drawing blood for the right person and the right tests. This verification step prevents mix-ups.

Tracking your test results after your appointment

After your tests are complete, Quest processes the samples and sends results to your doctor. You can also view your own results on the Quest patient portal using the same login you used to book your appointment. Results typically appear within 24 to 48 hours for routine blood work, though some specialized tests take longer.

Your confirmation number isn't used to look up results — you'll use your account login instead. If you forget your password, you can reset it on the Quest website. If you have questions about your results, contact your doctor's office; they ordered the tests and can explain what the numbers mean for your health.

Frequently Asked Questions

Can I use my confirmation on my phone, or do I need to print it?

You can show your confirmation on your phone. The barcode on the digital version scans the same way a printed copy does. Bring your phone to check-in, and the staff will scan it or manually enter your confirmation number.

What if I lost my confirmation number?

Log into your Quest account online or in the app to find your appointment and confirmation number. You can also call the location where your appointment is scheduled and give your name and date of birth — they'll look it up and provide the number or reschedule you on the spot.

Do I need to confirm my appointment before I go?

You don't have to call to confirm, but you can if you want to verify the location hours or ask about wait times. If you're fasting, calling to confirm the fasting window and arrival time is a good idea so you know exactly when to stop eating.

What if my confirmation shows the wrong tests?

Call the location or your doctor's office right away. Your confirmation should match the tests your doctor ordered. If there's a mismatch, don't go to your appointment — contact your doctor first to make sure the right tests are ordered, then reschedule with the correct information.

How long do I need to keep my confirmation?

Keep it until you've received and reviewed your test results. After that, you can discard it. If you need to reference your appointment or results later, you can always log into your Quest account to view your history.