fix (Lab Test): None TypeError in Patient Medical Record
diff --git a/erpnext/healthcare/doctype/lab_test/lab_test.py b/erpnext/healthcare/doctype/lab_test/lab_test.py
index 1a05f1e..d114ead 100644
--- a/erpnext/healthcare/doctype/lab_test/lab_test.py
+++ b/erpnext/healthcare/doctype/lab_test/lab_test.py
@@ -290,10 +290,14 @@
 		comment = ""
 		if item.lab_test_comment:
 			comment = str(item.lab_test_comment)
-		event = ""
+		table_row = item.lab_test_name
+
 		if item.lab_test_event:
-			event = item.lab_test_event
-		table_row = item.lab_test_name +" "+ event +" "+ item.result_value
+			table_row += " " + item.lab_test_event
+
+		if item.result_value:
+			table_row += " " + item.result_value
+
 		if item.normal_range:
 			table_row += " normal_range("+item.normal_range+")"
 		table_row += " "+comment