Sedation
Sedation refers to the administration of pharmacologic agents to reduce anxiety, discomfort, and awareness during medical or dental procedures. Its use spans a broad spectrum,…
Secretin Stimulation Testing
Secretin stimulation testing is a specialized diagnostic procedure used to evaluate pancreatic exocrine function and confirm the presence of gastrin-secreting tumors, such as those seen…
Secondary Syphilis
Secondary syphilis is the second stage of the sexually transmitted infection caused by Treponema pallidum, typically occurring weeks to a few months after the initial…
Secondary Progressive Multiple Sclerosis
Secondary progressive multiple sclerosis (SPMS) is a distinct phase of multiple sclerosis (MS) characterized by a progressive worsening of neurologic function over time. Initially, patients…
Secondary Prevention of Atherosclerotic Cardiovascular Disease
Secondary prevention of atherosclerotic cardiovascular disease (ASCVD) refers to a strategic, evidence-based approach to reduce the recurrence of cardiovascular events in individuals with a documented…
Secondary Osteoporosis
Secondary osteoporosis is a metabolic bone disorder characterized by decreased bone mineral density (BMD) and compromised bone microarchitecture due to identifiable medical conditions or medications.…
Secondary Glaucoma
Secondary glaucoma refers to a group of eye disorders characterized by increased intraocular pressure (IOP) due to an identifiable underlying cause. Unlike primary glaucomas, secondary…
Secondary Amenorrhea
Secondary amenorrhea is defined as the absence of menstrual periods for three or more consecutive cycles—or six months—in women who previously had regular menstruation. Unlike…
Seborrheic Dermatitis of the Scalp
Seborrheic dermatitis of the scalp is a chronic inflammatory skin condition that primarily affects sebaceous gland-rich areas, most notably the scalp. It manifests through flaky…
Seborrheic Dermatitis
Seborrheic dermatitis is a chronic, relapsing inflammatory skin condition characterized by erythematous plaques, greasy scales, and persistent itching, primarily affecting areas rich in sebaceous glands.…
