Diagnostic Criteria for Common Variable Immunodeficiency (CVI)

Common variable immunodeficiency (CVID) is a rare immune deficiency characterized by low levels of serum IgG, IgA, and/or IgM, with a loss of Ab production. The diagnosis is most commonly made in adults between the ages of 20 and 40 years, but both children and much older adults can be found to have this immune defect. 

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British Hypertension Society Classification of Blood Pressure Levels (BHS-IV)

This classification equates with that of the European Society of Hypertension (ESH) and that of World Health Organization/ International Society of Hypertension (WHO/ISH), and is based on clinic blood pressure values. If systolic blood pressure and diastolic blood pressure fall into different categories, the higher value should be taken for classification.

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Diagnostic Criteria for Idiopathic Hypereosinophilic Syndrome (HES)

Diagnostic Criteria for Idiopathic Hypereosinophilic Syndrome (HES) are:

1. Persistent eosinophilia of over 1500/cubic millimeter for longer than 6 month;

2. Lack of evidence of other known causes of secondary hypereosinophilia (SH);

3. Multiple organ involvement.

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Diagnostic Criteria for HELLP Syndrome

The diagnosis of HELLP syndrome (hemolysis, elevated liver enzymes, and low platelet count) is based upon the presence of the characteristic laboratory findings in patients of appropriate gestational age. Imaging tests, particularly CT or MRI scanning, are useful when complications such as hepatic infarction, hematoma, or rupture are suspected.

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NYHA Functional Classification for Congestive Heart Failure

The New York Heart Association (NYHA) Functional Classification provides a simple way of classifying heart disease (originally cardiac failure), useful for preoperative assessment. It places patients in one of four categories, based on how much they are limited during physical activity:

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