HVAC technicians are required to undergo and complete a minimum of six months up to two years of training. Training programs must be taken from technical schools accredited by organizations like HVAC Excellence or (PAHRA) the Partnership for Air-Conditioning, Heating Refrigeration Accreditation.
ICD-9-CM Volume 2 Index entries containing back-references to 783.1: 1  Abnormal, abnormality, abnormalities - see also Anomaly weight gain 783.1 of pregnancy 646.1 with hypertension - see Toxemia, of pregnancy. 2  Excess, excessive, excessively weight 278.02 gain 783.1 of pregnancy 646.1. 3  Gain, weight (abnormal) (excessive) (see also Weight, gain) 783.1.
Abnormal Blood Fats. If you're overweight or obese, you're at increased risk of having abnormal levels of blood fats. These include high levels of triglycerides and LDL (bad) cholesterol and low levels of HDL (good) cholesterol. Abnormal levels of these blood fats are a risk factor for CHD.