Hypertension (HTN), also known as high blood pressure, is the persistent, chronic increase in blood pressure in the arteries that can cause health problems and damage to the body's organs . There are two main types of hypertension: primary (essential) and secondary (Khan, et al., 2013). Primary hypertension is a gradual increase in blood pressure without a known cause or underlying contributing disease. Secondary hypertension is an acute onset or spike in blood pressure associated with an underlying factor, such as: disease, medications, pain, and/or disease process. There are approximately 200 different diseases and conditions that contribute to or cause secondary hypertension. The most common chronic diseases that have been shown to cause secondary hypertension include OSA, diabetes, chronic liver disease, congenital heart disease, and thyroid or parathyroid disease (Chobanian, et al., 2003). Diagnosis of hypertensionMeasurement of systolic and diastolic blood pressure is obtained using a sphygmomanometer and a stethoscope. Blood pressure measurement/diagnosis is completed in a doctor's office or clinic; it is repeated over time to ensure accuracy and the measurement is quick and painless. Systolic pressure is the blood pressure in the arteries during the contraction phase of the heart. Diastolic pressure is the pressure in the arteries during the relaxation phase of the heart. Currently, JNC 7 (2003) has classified blood pressure into categories based on systolic and diastolic blood pressure for diagnosis, based on evidence associated with cardiovascular disease. The JNC 7 (2003) systolic/diastolic blood pressure classifications are divided into the following diagnoses:• normal...... center of paper...... use,• stress,• sedentary lifestyle, and• obesity (Pedrosa, Krieger, Lorenzi-Filho, & Drager, 2011). The various categories of hypertension related to OSA are as follows: • nocturnal hypertension (abnormal 24-hour blood pressure that includes high blood pressure during sleep with failure and/or reverse dipping), • resistant hypertension (hypertensive blood pressure that is not controlled despite the use of three antihypertensive drugs including a diuretic), • masked hypertension (blood pressure that is normal in a clinic or doctor's office and becomes hypertensive during walking, or in the home environment.), and • pulmonary hypertension ( high blood pressure in the pulmonary arteries, separate from systemic hypertension) (Zhang & Si, 2012). Currently, PAP therapy is not mentioned, or considered, a treatment measure for hypertension.