diff --git a/cloud-functions/nodejs/functions/index.js b/cloud-functions/nodejs/functions/index.js
index 9232015..9e9d7ab 100644
--- a/cloud-functions/nodejs/functions/index.js
+++ b/cloud-functions/nodejs/functions/index.js
@@ -137,7 +137,7 @@ exports.kitAlert = async (event, context) => {
     console.log('Function triggered by change to: ' + resource);
     // now log the full event object
     console.log(JSON.stringify(event));
-    const { kitSerial, classificationResult, _id, led1Average, led3Average, deviceRatio } = event.value.fields;
+    const { kitSerial, classificationResult, _id, led1Average, led2Average, led3Average, deviceRatio, abs1, abs2 } = event.value.fields;
     console.log('kitSerial', kitSerial);
     console.log('classificationResult', classificationResult);
     // if (classificationResult?.stringValue?.includes("Trait")) {
@@ -173,8 +173,6 @@ exports.kitAlert = async (event, context) => {
     const led3Intercept = 0.001704;
 
     console.log('_id', _id?.stringValue);
-    console.log('led1Average', led1Average?.doubleValue);
-    console.log('led3Average', led3Average?.doubleValue);
     const LED1Average = led1Average?.doubleValue;
     const LED3Average = led3Average?.doubleValue;
 
@@ -223,6 +221,26 @@ exports.kitAlert = async (event, context) => {
         devRatioClass = "Sickle Cell Disease";
     }
 
+    const slope = (led1Average?.doubleValue - led2Average?.doubleValue) / (435 - 415);
+    const slopeRatio = Math.abs(led3Average?.doubleValue / slope);
+    let slopeRatioClass = "INVALID";
+
+    if (slopeRatio > 0 && slopeRatio <= 35.0) {
+        slopeRatioClass = "Normal";
+    }
+    if (slopeRatio > 35.0 && slopeRatio <= 40.0) {
+        slopeRatioClass = "Negative Borderline";
+    }
+    if (slopeRatio > 40.0 && slopeRatio <= 70.0) {
+        slopeRatioClass = "Sickle Cell Trait";
+    }
+    if (slopeRatio > 70.0 && slopeRatio <= 75.0) {
+        slopeRatioClass = "Positive Borderline";
+    }
+    if (slopeRatio > 75.0 && slopeRatio <= 300.0) {
+        slopeRatioClass = "Sickle Cell Disease";
+    }
+
     console.log(classification);
 
     const docs = await admin.firestore().collection("testData").where("_id", "==", _id.stringValue).get();
@@ -234,6 +252,8 @@ exports.kitAlert = async (event, context) => {
         // prdClassification: classification
         // incubationTime: admin.firestore.FieldValue.delete()
             deviceRatioClass: devRatioClass,
+            slopeRatio: slopeRatio,
+            slopeRatioClass: slopeRatioClass,
         });
     })
 };