SQL 2012 :: Cannot Use One With Block With 2 Update Statements

I get the error:

(0 row(s) affected)
Msg 208, Level 16, State 1, Line 41
Invalid object name 'X_SET_PREOP'.

FOR THE FOLLOWING CODE SEGMENT.. I am trying to do 2 updates with just one WITH BLOCk.Create table #temp( MPOG_CASE_ID uniqueidentifier, lab_name varchar(100), lab_date datetime, lab_value decimal(19,2) );

with X_SET_PREOP as
(
SELECT
xx= ROW_NUMBER() OVER ( PARTITION BY lab.MPOG_Case_ID, lab.lab_name ORDER BY lab.lab_date DESC ),
lab.MPOG_Case_ID,
lab.lab_name,
lab.lab_value,lab.lab_date
FROM
MPOG_Research..ACRC_427_lab_data lab

[code]....