What does "q2h" mean with respect to medication administration?

"Q2h" stands for "every 2 hours" in the context of medication administration. This abbreviation is derived from the Latin phrase "quaque 2 hora," indicating that a medication should be given at a frequency of every two hours.

Using this schedule is essential for maintaining consistent therapeutic levels of a medication in the patient's system, particularly if the medication has a short half-life or requires regular dosing to remain effective. For example, a medication that needs to alleviate pain may be prescribed to be taken every 2 hours to ensure the patient remains comfortable.

Understanding this abbreviation is crucial for healthcare professionals to prevent medication errors and ensure the delivery of safe and effective care. Knowing these terms can help in interpreting physician orders accurately and adhering to the prescribed medication regimen.