What important step should be taken before reassuring a patient with subconjunctival hemorrhage?

Before reassuring a patient with subconjunctival hemorrhage, it is crucial to check their blood pressure. Subconjunctival hemorrhage occurs when bleeding occurs underneath the conjunctiva of the eye, which usually presents as a bright red patch. While it may appear alarming, it is often benign and can be caused by various factors, including trauma, elevated blood pressure, or even the act of coughing or straining.

Checking the blood pressure is important because elevated blood pressure may indicate underlying hypertension, which could necessitate further investigation or treatment. High blood pressure can contribute to vascular changes, increasing the risk of bleeding not only in the eye but throughout the body. Therefore, confirming the patient's blood pressure allows for a better understanding of their overall condition and helps the healthcare provider ascertain if there is a need for further management or referrals.

In contrast, confirming allergies, performing a visual acuity test, or referring to an ophthalmologist may be appropriate in specific clinical scenarios but are not the immediate priorities when a patient presents with this condition. Assessing blood pressure provides critical information that could influence the subsequent course of action and patient reassurance.