This page is general health information, not medical advice. It cannot tell you whether you have an infection. A clinician can, and the testing options on this site are a good place to start.

Waiting for results is often the hardest part of getting tested. In Tucson, some tests can return answers in about 20 minutes, while others take a few days. Knowing which is which helps you plan your visit and your week.

This guide walks through how same day std testing in Tucson works, step by step. It covers what to bring, which tests are rapid, how long std test results usually take, and what to do while you wait.

Quick answer: what can come back the same day?

The CDC STI Treatment Guidelines (2021) describe several kinds of tests. They do not all work at the same speed.

Rapid HIV tests can give a result during the visit. Southern Arizona AIDS Foundation (SAAF) says it uses a rapid HIV antigen and antibody test with results in approximately 20 minutes.
Rapid syphilis tests exist, but not every clinic offers them. None of the Tucson clinic pages we reviewed say they do, so ask when you call.
Chlamydia and gonorrhea tests usually use a lab method called a nucleic acid amplification test (NAAT), which the CDC recommends. Samples are typically sent to a lab, so results often take about 1 to 3 days.
Other lab tests, such as blood tests for syphilis, hepatitis B and hepatitis C, or herpes tests when a clinician orders them, generally take longer than a rapid test. The clinic can tell you its usual timing.

So a same-day visit can be same-day for HIV, and still leave other results pending for a few days.

What you need before you go

You do not need much. Here is a short checklist.

A phone you will answer. Many clinics call with results or ask you to check a patient portal. Ask which one they use.
An insurance card, if you have one. Some clinics bill insurance. Others use a sliding fee scale. Ask what the clinic needs from you, including whether photo ID is required, since the clinic pages we reviewed do not say.
A list of dates and notes. The date of your last test and the timing of any possible exposure help the clinician choose the right tests.
A list of any symptoms. Symptoms can change which test a clinician chooses and how soon you are seen.
A plan for the rest of the day. If you are not feeling rushed, waiting for a rapid result is easier.
Questions written down. It is easy to forget them once you are in the room.

For some urine tests, clinics ask you not to urinate for a short time before the sample. Ask when you book whether there is any prep for your visit.

Step-by-step: how to get tested in Tucson

Step 1: Decide which results you want to get fastest

If getting an HIV result in one visit matters most, look first for a clinic that uses rapid HIV testing. If you are mostly looking for chlamydia and gonorrhea testing, plan on a wait of a day or more no matter where you go.

You can also tell the clinic what you are hoping for. Staff can explain which tests fit your situation and which results will be ready while you are there.

Step 2: Choose a clinic and check whether you need an appointment

Walk-in availability in Tucson varies by clinic and can change. Here is what the published sources say.

Theresa Lee Public Health Center (Pima County Health Department), 1493 W. Commerce Court, 520-724-7900. The county Clinic Hours page lists HIV/STI testing as by appointment only. The county HIV and STI page says clients are seen on a walk-in basis and that wait times can vary. Because the two pages differ, call before you go. The Clinic Hours page lists no services from noon to 1 p.m. daily, and the clinic is closed the first Thursday of every month.
Pima County Northwest Clinic, 1010 W. Miracle Mile, 520-724-2880. The county lists HIV/STI testing here, but the Clinic Hours page gives no hours for it. The county says walk-in services are available as capacity allows. Call first.
SAAF Health, 375 S. Euclid Avenue, 520-628-7223. SAAF says making an appointment is your best option. Testing hours listed are Tuesday, Thursday and Friday 8:15 a.m. to noon, and Monday, Tuesday and Wednesday 1:15 to 5:00 p.m. Wednesday 5:00 to 7:00 p.m. is walk-in only. SAAF's page describes free HIV testing, and the CDC GetTested listing for SAAF also lists free STI tests. Contact SAAF to confirm eligibility.
Planned Parenthood Southern Arizona Regional Health Center, 2255 N Wyatt Dr, 520-408-7526. A 211 Arizona listing says walk-ins are accepted and fees vary. Other directories show a different phone number and hours, so confirm by phone.
El Rio Health, 839 W Congress St (and a Southeast campus at 6950 E Golf Links Rd), 520-670-3909. The CDC GetTested listing says appointments are required. It lists HIV, hepatitis B and C, herpes, chlamydia, gonorrhea and syphilis tests, and says sliding scale fees are accepted. Contact El Rio for eligibility.
University of Arizona Campus Health Service, 520-621-9202. Express STI testing is for students only. It covers gonorrhea and chlamydia for people without symptoms, with a flat fee of $65 listed on the campus page. It is not billed to insurance and needs no appointment. With symptoms, the page says to call to schedule.

For a fuller local list, see the Tucson testing options. You can also search by ZIP code at gettested.cdc.gov, the CDC's testing locator.

Step 3: Call and ask the right questions

A two-minute call can save you a trip. Try asking:

Do you offer rapid HIV testing, and how long until I have the result?
Do you offer rapid syphilis testing?
Which tests will you send to a lab, and how long do those results usually take?
Do I need an appointment, or are walk-ins seen today?
What will it cost, and is there a sliding fee scale?
How will I get my results: phone, portal or in person?

If a price is not published, say so and ask. Several clinic pages for Tucson do not list fees. The Pima County page says no one is turned away for inability to pay and describes a sliding fee scale based on income.

Step 4: Go to your visit

A typical visit includes a short conversation about your health and recent sexual contact. You can share as much as you are comfortable with, and the staff are there to help, not to judge.

The sample depends on the test. It may be a urine sample, a swab, a finger prick or a blood draw. Depending on your exposures, a clinician may also suggest swabs from the throat or rectum, since the CDC notes infections can be present at those sites.

If you are under 18, Pima County states minors do not need parental consent at its clinics. Arizona law (A.R.S. 44-132.01) also says a minor who may have a venereal disease can consent to medical care for its diagnosis or treatment, and a parent's consent is not required.

Step 5: Wait for your results the right way

For a rapid HIV test, you may wait in the clinic for about 20 minutes. For lab-based tests, ask when to expect a call or message. If the date passes and you have heard nothing, call the clinic. Do not assume that silence means a particular result.

Step 6: Follow up

Ask what the next step is for each result before you leave. If any result needs follow-up, the clinic will explain it. Treatment, when needed, is something a clinician prescribes, and the clinic can tell you what that looks like for your situation.

How long do STD test results take?

The honest answer is that it depends on the test and the clinic. Here are typical ranges, based on the CDC guidelines and the clinic descriptions above.

Test	Typical timing
Rapid HIV test	About 20 minutes at SAAF, per its testing page
Chlamydia and gonorrhea (NAAT)	Usually about 1 to 3 days, lab dependent
Syphilis blood test	Often a few days; ask the clinic
Hepatitis B and C blood tests	Often a few days; ask the clinic
Herpes testing	Depends on the test a clinician orders; ask the clinic

These are general ranges, not promises. Lab volume, holidays and weekends can add time.

The window period: why timing matters

A window period is the time between a possible exposure and when a test can reliably detect an infection. The CDC publishes these windows for HIV, and they vary by test type.

According to the CDC, nucleic acid tests (NATs) can usually detect HIV 10 to 33 days after exposure.
The CDC says antigen and antibody tests done on blood from a vein can usually detect HIV 18 to 45 days after exposure.
For antigen and antibody tests done with a finger prick, the CDC says the range is 18 to 90 days.
The CDC says antibody tests can take 23 to 90 days to detect HIV.

This is why a clinician may suggest a repeat test after a negative result, depending on when the possible exposure happened. Ask which test the clinic uses and whether a follow-up test makes sense for you.

For other infections, windows differ. A clinician can tell you what applies to the tests you are taking.

What your results may look like

These descriptions are general. Only a clinician can interpret your own result.

A negative result means the test did not detect that infection in your sample at that time. Depending on timing, a clinician may suggest testing again.
A positive or reactive result means the test found something that usually needs confirmation. For rapid HIV tests, the CDC says a reactive result needs follow-up testing. A reactive result is a signal for more testing, not a final answer.
An unclear or invalid result can happen with any test. The clinic will usually repeat the test.

If follow-up is needed, remember that many infections are treatable. Per the CDC, bacterial STIs such as chlamydia, gonorrhea and syphilis, and trichomoniasis, are curable with treatment from a clinician. HIV and herpes are not curable, but they are treatable and manageable with care from a clinician.

Tips for a smoother visit

Go early in the week if you want results sooner. Lab samples collected late in the week may sit over a weekend.
Check the clinic day. Pima County clinics are closed the first Thursday of every month and do not see patients from noon to 1 p.m.
Ask about all the sites. If you want to be tested for infections that can show up in the throat or rectum, say so.
Ask about prevention. Pima County lists PrEP Starter Packs and navigation at Theresa Lee and the Northwest Clinic. SAAF and Planned Parenthood list PEP, and the CDC has published guidance on doxy-PEP (2024) that a clinician can discuss with you.
Bring a friend if it helps. Or go alone. Either is fine.

Common mistakes to avoid

Assuming every test is rapid. Only some tests return results in one visit.
Skipping the call. Walk-in rules in Tucson are not the same everywhere, and two county pages even differ.
Testing at the wrong time. Testing during the window period can mean a result that does not reflect a recent exposure. Ask about timing.
Treating one result as the whole picture. A single negative result does not cover every infection or every time point.
Not asking how results are delivered. If you leave without a plan, you may wait longer than you need to.
Letting a missed call slide. If you cannot reach the clinic, call back. Results are worth chasing.

Free and low-cost options in Tucson

Cost should not be the reason someone goes without testing. A few details from published sources:

Pima County says it uses a sliding fee scale based on income and that no one is turned away for inability to pay.
SAAF lists free HIV testing, and the CDC GetTested listing for SAAF also lists free STI tests.
El Rio Health lists sliding scale fees through the CDC GetTested directory. Check with El Rio for eligibility.
Get Tested AZ (HIV AZ and Aunt Rita's) offers free at-home HIV test kits with an oral swab and results in about 20 minutes after a short survey. The page does not mention Tucson or Pima County or state eligibility rules, so check the page for details. Free STI testing there is in person through Sonora Quest Laboratories, with possible eligibility rules.

Planned Parenthood fees are listed only as varying, and Pima County does not publish a price list on the pages we reviewed. Ask the clinic directly.

Why testing matters here

Pima County's health indicator page, using CDC data (NCHHSTP, 2023), lists a chlamydia rate of 555 per 100,000 people and a gonorrhea rate of 172 per 100,000. The same page lists a primary and secondary syphilis rate of 26.1 per 100,000. Pima County also states that syphilis is on the rise locally.

The USPSTF and the CDC recommend screening based on age, sexual activity and other factors, and many infections cause no symptoms. A clinician can help you work out what screening schedule makes sense for you. Arizona law (A.R.S. 36-693) also calls for syphilis testing at the first prenatal exam for pregnant patients, which is one reason prenatal care is a good time to ask about testing.

What to do next

Pick one clinic from the list above and call it today.
Ask which of your tests can come back the same day, and which will take longer.
Book a time, or ask the best day to walk in.
Write down how and when you will get each result.

You can also look up other testing sites by ZIP code at gettested.cdc.gov. Getting tested is a routine part of taking care of your health, and Tucson has several places to do it.

Same-Day STD Testing in Tucson: Rapid Tests and Quick Results