Educational article

Several Tests in One Visit: How to Plan Your Preparation Without Changing Your Routine on Your Own

Endomédicos

Endomédicos medical profile

Published 5 min read

Educational content. It does not replace an individual medical assessment and should not be used for self-medication.

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A person reviews a laboratory order and preparation instructions for several tests before sample collection.
Reviewing the instructions for each test can help coordinate sample collection with the laboratory.

Can I have several tests done during one visit?

It is often possible to have several samples collected during one visit, but this depends on the tests ordered and their preparation instructions. Do not assume that all tests require the same conditions. Use the order and the instructions from the person who requested the tests as your starting point.

Not all tests require the same preparation

There is no single preparation routine for all metabolic tests. Some tests may have specific instructions, while others may not require fasting. Review the instructions for each test, and do not try to combine them on your own.

What should I do if the instructions are unclear?

Call the laboratory where you plan to have your samples collected and ask whether the tests on your order can be done during one visit and what preparation is needed for each. If the laboratory’s instructions differ from those you received from the person who requested the tests, ask for clarification before proceeding. Protocols may vary among laboratories in Colombia.

Do not fast longer to accommodate all the tests

If an instruction mentions fasting, confirm how long you should fast and which tests it applies to. Fasting longer does not replace specific instructions. If you have questions, consult the laboratory or the professional who requested the tests.

Do not change medications or supplements on your own

Tell the laboratory which medications and supplements you normally use. If you are told to stop, delay, or change any of them, confirm the instruction with the professional who prescribes them before changing your routine. If you received conflicting instructions, ask for help clarifying them.

Before you leave for sample collection

Make sure you have the complete order, and write down the medications and supplements you normally use. Confirm with the laboratory what preparation is required for each test and whether they can be done during the same visit. If an instruction is unclear, ask using the exact name of the test.

When should I ask for additional guidance?

Consult the professional who requested the tests if you cannot resolve conflicting instructions, if you are asked to change a medication, or if a personal health condition could affect your preparation. Planning should be based on your tests and instructions, not on a universal routine.

Confirm preparation for each test

Having several test orders does not mean you need to fast longer or change your medications. Reviewing the instructions and coordinating the logistics with the laboratory can help you plan your visit. This content is educational and does not replace instructions from your healthcare team.

When to seek medical care

If symptoms persist, test results are abnormal, or you have questions about medication, arrange an individual assessment. Do not change treatment or doses without medical guidance.

Frequently asked questions

Should I arrive fasting if I do not know which tests require it?

Do not assume that all tests require fasting, and do not fast longer. Review the instructions for each test and confirm them with the laboratory where your samples will be collected.

Can I take my medications before the tests?

Do not skip or change medications on your own. Tell the laboratory which medications you use and confirm any change with the professional who prescribes them.

What should I bring on the day of sample collection?

Bring the laboratory order and a list of your usual medications and supplements. Also write down any questions you have about preparation and having the tests done together.

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Publicado: 25 de octubre de 2026 · Actualizado: 25 de octubre de 2026

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