Index: firmware/App/Controllers/PresOccl.c
===================================================================
diff -u -rc965df576088a9b2eb23d826f8f7e9f03d1bc962 -r22561b57504c9b3b0a6bb6fcc9430f02644fa030
--- firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision c965df576088a9b2eb23d826f8f7e9f03d1bc962)
+++ firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision 22561b57504c9b3b0a6bb6fcc9430f02644fa030)
@@ -40,10 +40,16 @@
 #define ARTERIAL_PRESSURE_V_PER_BIT         ( ARTERIAL_PRESSURE_V_BIAS / (F32)0x800000 )    ///< Volts per bit in 24-bit arterial pressure sensor reading.
 
 #define VENOUS_PRESSURE_OFFSET              ( 1638 )                                        ///< Offset for 14-bit venous pressure sensor reading.
-#define VENOUS_PRESSURE_SCALE               ( 14745 - VENOUS_PRESSURE_OFFSET )              ///< Scale for venous pressure sensor.
-#define VENOUS_PRESSURE_MIN                 ( -30.0 )                                       ///< Minimum of scale for venous pressure sensor reading (in PSI).
+#define VENOUS_PRESSURE_SCALE               ( 14745 - VENOUS_PRESSURE_OFFSET )              ///< Scale for venous pressure sensor.
+#define VENOUS_PRESSURE_MIN                 ( -30.0 )                                       ///< Minimum of scale for venous pressure sensor reading (in PSI).
 #define VENOUS_PRESSURE_MAX                 ( 30.0 )                                        ///< Maximum of scale for venous pressure sensor reading (in PSI).
 
+#define ARTERIAL_PRESSURE_SELF_TEST_MIN     ( -300.0 )                                      ///< Minimum self-test value for arterial pressure sensor reading (in mmHg).
+#define ARTERIAL_PRESSURE_SELF_TEST_MAX     ( 100.0 )                                       ///< Maximum self-test value for arterial pressure sensor reading (in mmHg).
+
+#define VENOUS_PRESSURE_SELF_TEST_MIN       ( -100.0 )                                      ///< Minimum self-test value for venous pressure sensor reading (in mmHg).
+#define VENOUS_PRESSURE_SELF_TEST_MAX       ( 600.0 )                                       ///< Maximum self-test value for venous pressure sensor reading (in mmHg).
+
 #define PSI_TO_MMHG                         ( 51.7149 )                                     ///< Conversion factor for converting PSI to mmHg.
 
 #define VENOUS_PRESSURE_NORMAL_OP           0                                               ///< Venous pressure status bits indicate normal operation.
@@ -570,6 +576,8 @@
     U32 const bpPressure = getMeasuredBloodPumpOcclusion();
     U32 const dialysateInPressure = getMeasuredDialInPumpOcclusion();
     U32 const dialysateOutPressure = getMeasuredDialOutPumpOcclusion();
+    F32 const arterialPressure = getMeasuredArterialPressure();
+    F32 const venousPressure = getMeasuredVenousPressure();
 
     if ( ( bpPressure <= MINIMUM_PRESSURE_READING ) || ( bpPressure >= OCCLUSION_THRESHOLD ) )
     {
@@ -585,9 +593,17 @@
     {
         result = SELF_TEST_STATUS_FAILED;
     }
+
+    if ( ( arterialPressure <= ARTERIAL_PRESSURE_SELF_TEST_MIN ) || ( arterialPressure >= ARTERIAL_PRESSURE_SELF_TEST_MAX ) )
+    {
+        result = SELF_TEST_STATUS_FAILED;
+    }
+
+    if ( ( venousPressure <= VENOUS_PRESSURE_SELF_TEST_MIN ) || ( venousPressure >= VENOUS_PRESSURE_SELF_TEST_MAX ) )
+    {
+        result = SELF_TEST_STATUS_FAILED;
+    }
 
-    // TODO - implement arterial blood and venous pressure self-test(s)
-
     return result;
 }