Dark triad is a triad of 3 personality traits, that implies having malevolent qualities. Classification Narcissism, involving grandiosity, pride, egotism, lack of empathy Machiavellianism, involving manipulation, exploitation of others, cynical disregard for morality,...

DNA repair-deficiency disorder is caused by reduced functionality of DNA repair. It can cause both accelerated aging disease, and an increased risk of cancer. Examples include: Ataxia telangiectasia Bloom syndrome Cockayne's syndrome Fanconi's anemia,...

Vitamin D deficiency (aka hypovitaminosis D) is deficiency of vitamin D. Cause Inadequate nutritional intake of vitamin D Inadequate sunlight exposure, in particular sunlight with adequate UV B rays Disorders limiting vitamin D absorption Conditions...

Disability is the consequence of an impairment that may be physical, cognitive, intellectual, mental, sensory, developmental, or some combination of these that results in restrictions on a patient's ability to...

Murmur is an auscultatable sound caused by turbulent flow of blood, caused by stenosis (i.e. restriction of heart valve opening) or regurgitation (i.e. allowing backflow of blood through an incompetent valve that incompletely closses). This...

Neurological examination is assessment of sensory and motor to determine whether the nervous system is impaired. Classification [[MMSE]] [[Cranial nerve exam]] [[Upper limb exam]] [[Lower limb exam]] Sensation Dermatome is an area of skin that is mainly supplied...

Cyanosis is blue or purple coloration of skin or mucous membranes, due to tissue near skin surface having low oxygen saturation. Signs usually first appear on the lips or fingers. Pathophysiology It...

Anticholinergics inhibits parasympathetics, by blocking the neurotransmitter acetylcholine [specifically, its binding to its receptor in neurons]. Parasympathetics are responsible for involuntary movement of smooth muscle present in the GI, urinary tract,...

Sunburn is a form of radiation burn, that affects living tissue, e.g. skin, that results from an overexposure to UV (ultraviolet) radiation, commonly from the sun. Sx Erythema (red or reddish skin),...

ACL injury is an injury of the ACL (anterior cruciate ligament), which is an important, internal, stabilizer of the knee joint, restraining hyperextension. Pathophysiology It is injured when its biomechanical limits are...