Test Details
Lab Company: Precision Analytical
Sample Type: Urine
Collection Location: At Home
The DUTCH OATs test helps identify problems with your hormones, nutrition, and oxidative stress. It measures two neurotransmitter metabolites, four nutritional organic acids, 8-OHdG, and melatonin.
Key Details
You must avoid certain foods and beverages before and during the collection period.
If you are taking hormones or supplements, consult the information below and your healthcare provider to discuss collection timing.
You can collect your samples on any day.
Ensure the samples are fully dried before shipping them back.
Samples should be shipped to the lab as soon as possible after sample collection.
You MUST send the completed test requisition form and waiver (NY & RI patients only) back to the lab with your samples. Failure to send these forms with your samples may result in a recollection.
Preparation & Timing
You can collect your samples on any day.
Some supplements may affect your organic acid results. Please consult your healthcare provider regarding collection preparation and timing if you take any of the following supplements:
Tyrosine
L-Dopa
D,L-Phenylalanine (DLPA)
Mucuna
Quercetin
DO NOT skip doses of birth control unless instructed by your healthcare provider.
If you are taking
Patch, Pellet, or Injectable Hormones: Collect your sample midway between doses.
Sublingual Hormones: Please review the video instructions HERE.
Oral Hydrocortisone: Please review the video instructions HERE.
Glucocorticoids: Check with your healthcare provider regarding when you should collect your samples.
72 hours prior to sample collection
Avoid taking the following oral hormones:
Estrogen
Pregnenolone
48 hours prior to sample collection
Avoid the following foods before sample collection.
Avocados
Bananas
Fava beans
Avoid taking oral DHEA.
Avoid the following beverages starting after lunch on collection day 1 and through the collection period.
Alcohol
Caffeine
Any large fluid intake
Sample Collection Day 1
Limit your fluid intake.
Keep fluids to no more than 40 oz total (spread evenly throughout the day).
Avoid the following beverages starting after lunch.
Alcohol
Caffeine
DO NOT drink any fluids for 2 hours before collecting each sample.
If you take hormones at night, wait to take them until after you collect the bedtime sample (sample 2).
Sample Collection Day 2
Limit your fluid intake.
DO NOT drink any fluids before collecting sample 3.
You can drink a little water immediately after sample 3. DO NOT drink more than 8 oz.
If you take hormones in the morning, wait to take your hormones after you collect the second morning sample (sample 4).
Collection Instructions
Collect according to the following schedule.
Sample Number | Collection | Collection |
1 | Dinnertime | - |
2 | Bedtime | - |
Overnight Sample | Collect at your first waking sleep disturbance. | If you wake up to urinate a second time during the night, do not collect |
3 | Upon waking for the day | DO NOT lay awake in bed before collecting sample 3. |
4 | 2 hours after waking | Tip: Set a timer to remind yourself! |
Collection Notes:
If you miss a collection, collect at the appropriate time the following day.
You can start the collection with Sample 3 instead of Sample 1.
You must collect the extra sample if you do this.
If you have an abnormal sleep schedule, collect at the following times:
Sample 1: 4-7 hours before bed
Sample 2: before your longest stretch of sleep
Sample 3: upon waking from this sleeping period
Sample 4: 2 hours later
DO NOT drink any fluids for 2 hours before each sample collection.
Write the following information on the collection device.
Your full name
Date of collection
Time of collection
Day of your cycle (if applicable)
Sample number (following the schedule above)
Collect your urine by either:
Urinating directly on the filter paper
Collecting your urine in a clean cup
If you collected your urine in a clean cup, dip the filter paper in the urine.
Ensure the filter paper is fully saturated.
Leave the collection device open to dry for at least 24 hours.
DO NOT touch the filter paper with your fingers.
Once the filter paper is dry, close and fold each collection device.
COMPLETE THE TEST REQUISITION FORM.
Instructions on how to fill out your requisition can be found HERE.
If you live in New York or Rhode Island, please also complete the included waiver (instructions HERE).
Failure to complete and send the test requisition form may result in a sample recollection.
Place all collection devices into the resealable plastic bag.
Place the completed requisition form, waiver (if applicable), and plastic bag into the provided envelope to ship back to the lab.
Requisition & Payment
Your kit has been prepaid. You DO NOT need to pay anything extra.
Instructions on how to fill out your requisition can be found HERE.
Since you pre-paid for your tests, you do not need to fill in the payment information on any of these forms.
If you live in New York or Rhode Island, please also complete the included waiver (instructions HERE) and send it to the lab with your samples.
Shipping
Please ship your samples as soon as possible after collection.
If you have to wait to ship your samples, please place the plastic bag containing the samples in the freezer after they have dried.
To prepare your samples for shipping,
Once the collection devices are dry, close and fold each device.
Place all sample collection devices into the resealable plastic bag.
Place the plastic bag into the provided UPS envelope.
Place the completed requisition form into the provided UPS envelope.
Place the completed waiver (NY & RI patients only) into the provided UPS envelope.
Seal the envelope.
Make a note of the tracking number so that you can track your sample back to the lab.
Results
Results should be released to your provider 7-10 business days after samples are received at the lab. Rupa cannot guarantee processing time.
Your provider will notify you when your results are in and schedule a follow-up appointment for you to review them together.
More Resources
Test Information
Collection Instructions
Questions?
For general questions, email Rupa Health at support@rupahealth.com. For test-specific questions, contact Precision Analytical by calling 1-503-687-2050 or chatting with support.