The medical abbreviation "GTT" stands for "drop". This abbreviation is commonly used in medication orders or prescriptions to indicate the number of drops to be administered. For example, a prescription may state "2 gtt in each eye three times a day" to indicate that two drops of medication should be instilled in each eye, three times per day.
The abbreviation "gtt" may also be used in medical documentation to indicate the presence of drops in a patient's medical history or physical exam findings. For example, a nurse might document "right eye redness and itching, 3-4 gtt clear discharge observed" in a patient's chart to describe their eye symptoms.
It is important to note that the abbreviation "gtt" should be used with caution, as it can easily be mistaken for "gt", which means "gram(s) of weight". To avoid errors, healthcare providers should always write out the full word "drop" instead of using the abbreviation when communicating medication orders or documenting patient care.