Hypochondriasis is a psychiatric disorder characterized by at least 6 months existence of the following:≥1 physical symptoms associated with the belief that these physical symptoms are a manifestation of an underlying serious illness;
Hypertriglyceridemia is a common form of dyslipidemia characterized by an excess fasting plasma concentration of triglycerides (TGs).
Hyperthyroidism or thyrotoxicosis defines a spectrum of clinical findings consistent with thyroid hormone excess. The former describes excess from the thyroid gland, whereas the latter can be produced from any other source or not identified.
Numerous terms can be used in the literature and often overlap (see Synonyms). Some definitions include a specific diastolic or systolic BP reading, whereas others emphasize an acute change in the BP or the presence of specific clinical syndromes.
Uncontrolled hypertension comprises the following entities:Secondary hypertension: Elevated blood pressure (BP) that results from an identifiable underlying mechanism
Hypertension (HTN) is defined as 2 or more elevated BPs (systolic BP ≥140 mm Hg and/or diastolic BP ≥90 mm Hg) at ≥2 visits; operationally, any BP at which drug treatment results in a net benefit.
Hypersplenism consists of the triad of:Splenomegaly;Cytopenias with respective bone marrow hyperplasia of precursors, andResolution of the cytopenias with splenectomy
A diffuse inflammatory disease of the lung caused by an exaggerated immune response to repeated inhalation of airborne environmental antigens.
Hyperprolactinemia is an abnormal elevation in the serum prolactin level with multiple possible etiologies.
An acute or chronic dysfunction of the body’s normal regulatory feedback mechanisms for parathyroid hormone (PTH):Primary: Intrinsic gland dysfunction and abnormal regulation of PTH secretion by calcium causing excessive PTH secretion;Secondary: Gland hyperactivity that is a response to hypocalcemia, vitamin D deficiency, or renal failure;Tertiary: Autonomous hyperfunction in the setting of long-standing secondary hyperparathyroidism (HPT)