Symptomatic Orthostatic Hypotension
Symptomatic orthostatic hypotension (OH) is a clinically significant drop in blood pressure upon standing, accompanied by symptoms such as dizziness, lightheadedness, visual disturbances, fatigue, or…
Suspected Exposure to High-Potency Opioid
The deliberate or accidental release of high-potency opioids as chemical weapons presents a severe public health and national security threat. Synthetic opioids, such as fentanyl…
Surgical Procedures on the Eye Proper
Surgical procedures on the eye proper refer to interventions involving the ocular globe and its internal structures. These highly specialized operations aim to restore, preserve,…
Surgical Hemostasis Adjuncts
Effective hemostasis is critical to the success of surgical procedures, directly influencing patient outcomes and operative efficiency. While conventional methods such as ligation, cautery, and…
Supraventricular Tachycardia
Supraventricular tachycardia (SVT) encompasses a group of arrhythmias characterized by an abnormally rapid heart rate originating above the ventricles. This condition can cause significant discomfort…
Supraventricular Arrhythmias
Supraventricular arrhythmias refer to abnormal heart rhythms that originate above the ventricles, specifically in the atria or the atrioventricular (AV) node. These arrhythmias range from…
Suprapubic Pain
Suprapubic pain, located just above the pubic bone in the lower abdomen, is a common but multifaceted symptom encountered in clinical practice. It may be…
Suppression of the Gag Reflex
The gag reflex, or pharyngeal reflex, is a normal protective response triggered by stimulation of the oropharyngeal region. While its purpose is to prevent aspiration,…
Suppression of Recurrent Herpes Simplex Infection in HIV
Recurrent herpes simplex virus (HSV) infection, particularly HSV-2, poses a significant clinical burden in individuals with HIV. Due to the immunocompromised status in HIV-positive patients,…
Superficial Ocular Infection
Superficial ocular infections are localized infections affecting the outermost layers of the eye and its adnexa, including the conjunctiva, corneal epithelium, eyelid margins, and lacrimal…