Category: A

The metabolic expenditure per unit of distance traveled. It is expressed as the number of heartbeats per meter traveled and is calculated by subtracting the resting heart rate from the exercise heart rate divided by the distance traversed.  

The number of times in an hour when a sleeping person either stops breathing completely or has limited airflow. Each episode must last at least 10 sec. The AHI is one indicator of obstructive sleep apnea, although it is recognized as an imperfect diagnostic tool. An AHI of 30 or more events in an hour…

A measure of the adequacy of blood flow to the arteries of the legs. It is used to gauge the severity of peripheral vascular disease.  

A structured assessment tool that evaluates the impact of addictive behavior on seven areas of living: alcohol use, drug use, employment, family relationships, illegal activities, physical health, and psychological health.  

A discharge of feces and urine in the normal way at regulated intervals but involuntarily.  

An elastic final impression material used to construct cast restorations, dental prostheses, and other appliances. It is made from a vinyl polysiloxane paste mixed with a platinum salt catalyst.  

Pregnancy resulting from successful assisted reproduction procedures.  

Impotence resulting from paralysis of nerves supplying the penis.  

A means of measuring an employee’s suitability for a particular job, esp. one in which the employee’s performance may affect the health or safety of others. Some employers have preferred using impairment testing rather than random drug screening to assess the fitness of workers for employment in safety-conscious work environments (e.g., hospitals).  

Immunotherapy in which individual antigens are used in gradually increasing concentrations to stimulate an immune response (e.g., against particular allergic diseases or tumors).