Merck Manual

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Substages of Chronic Kidney Disease Based on Arterial Blood Pressure (AP) Measurements and Risk of Target Organ Damage

Substages of Chronic Kidney Disease Based on Arterial Blood Pressure (AP) Measurements and Risk of Target Organ Damage

Substagea

AP0

AP1

AP2

AP3

No or minimal risk

Low risk

Moderate risk

High risk

Blood pressure (mmHg)

Systolic

<150

150–159

160–179

>180

Diastolic

<95

95–99

100–119

>120

a Stages are as recommended by the International Renal Interest Society. Other modifiers that may be added to the AP substage: C = evidence of end organ damage or complications present; T = patient presently being treated.