====== **Instruction for host code** ====== In patient sample machine has taken sample for hsTrop-I 3 times but did not taken for NT-proBNP-2 and it was due to host code of hsTrop-I and NT-proBNP-2 was same To prevent such type of mistake in future enter host code of new examination by seeing it in host code pdf =======**Error- Tip eject failure**======== Sometimes when tip is get stuck at the discard pipe, instrument will give the message of ** Tip eject error**. {{:nchsls:c:biochemistry:document:tip_ejection_pipe.jpeg?400|}} As corrective action, remove tip waste container and remove the stuck tips manually from the tip eject hole.