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Laboratory tests are medical tests that identify pathogens by analyzing urine, feces, sputum, blood, or other tissues or substances taken from the body to help one can assess, diagnose, treat or cure conditions or diseases of our patients (you)!

IV Nurse's liaison with one of the largest labs to service Puerto Rico makes it easier to bring specimen collection to your (or a loved one's) door.


What tests are available?

  • Allergies, Immunologies

  • Chemistry, Special Chemistry, Serology

  • Endocrinology Genetics, Paternity, Reproductive

  • Evaluation Hematology

  • HIV, Infectious Diseases

  • Microbiology

  • Oncology, Tumor Markers

  • Drugs of Abuse and Therapeutics

  • Molecular Tests

Do I have to be fasting for all tests?

Let's explain what fasting is first.  Fasting means you do not eat or drink anything but water usually for 8 to 12 hours beforehand.  For example, if your appointment is at 8 a.m. and you're told to fast for 8 hours, only water is OK after midnight. If it's a 12-hour fast, avoid food and drink after 8 p.m. the night before.  You shouldn't smoke, chew gum (even sugarless), or exercise as these activities can rev up your digestion, and that can affect your results.  Fasting requirements depend on the tests your doctor orders.  


By a rule of thumb, the following tests require an 8-10 hour fast:​

  • Fasting blood glucose measures the amount of glucose (sugar) in your blood to test for diabetes or prediabetes.
    Typical fasting time: At least 8 hours

  • Lipid profile checks the level of cholesterol and other blood fats, like triglycerides. High levels put you at risk for developing heart disease or having a stroke. Not all situations require fasting. You may not need it if you’re younger than 25 or if you require only a partial lipid panel or if your doctor is looking for a “non-fasting” result. Ask your doctor if you need to fast for your test.
    Typical fasting time: 9-12 hours

  • Basic or comprehensive metabolic panel (CMP) is often part of a routine physical. The tests check your blood sugar, electrolyte and fluid balance, and kidney function. The comprehensive test checks your liver function, too.
    Typical fasting time: 10-12 hours

  • Vitamin B12 test measures how much of the vitamin is in your blood. It can help diagnosis a specific type of anemia and other problems. Some medications can interfere with this test. Tell your doctor about all the drugs you take.
    Typical fasting time: 6-8 hours

  • Iron tests are used to see if iron levels in your system are too low or too high.
    Typical fasting time: 12 hours

  • Gamma-glutamyl transferase (GGT) shows the level of the GGT enzyme in your system. A high reading may indicate liver disease, bile duct problems, or alcohol abuse.
    Typical fasting time: at least 8 hours beforehand, avoid alcohol and some prescription drugs the day before the test because they can affect GGT levels; talk to your doctor before stopping any prescribed medicines.


The following tests may not require fasting, but do require special preparation:

  • Creatinine test-  may require fasting or avoiding cooked meats.

  • Cortisol test: must be drawn before 8:00am (morning) and you should be well rested.

  • Fecal occult blood test: do not allow the sample to touch toilet water.

  • Thyroid (Ash, T3/ T4): do not take medication until the sample is collected.

How can I best prepare myself for the home visit?

  1. Try to have a good night's sleep, stay hydrated and breathe, you are in excellent hands!

  2. Choose a place where you will feel most comfortable while the blood draw is completed- yes, you can be laying down on your sofa or sitting up on your favorite lounge chair!

  3. Follow all preparation recommendations from your doctor- this could be avoiding specific foods and drinks such as cooked meats, herbal teas, or alcohol a day or two prior to testing as they could alter results.  Ask your doctor if you should avoid certain medications or supplements. Talk to your health care professional about the medications you're taking, including over-the-counter medications, vitamins, and supplements.

  4. Do not overeat the day before the test

  5. No Smoking

  6. Urine samples- avoid having sex 24 hours prior to sample collection.

  7. Be sure to submit all documents required 48 hours prior to your service date.

I'm ready to coordinate my home visit, how do I book?

​You can book your service below (if you're a new patient, be sure to book under "new"), and submit the following documents:

  1. Demographics document (download below!)

  2. Insurance card (find approve insurance card list below).

  3. Doctor's order/ script (if you do not have  script chose the script add on to your service and we will schedule a call prior to your service



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