administering chemotherapy if the nurse is busy with another client
Number 1 is correct.
Obtaining vital signs is within the scope of practice for LPNs. They cannot administer blood but may witness signatures on the blood consent form, depending on the state and facility policies. IV pain medication cannot be given by LPNs as they are given IV push. LPNs may not administer chemotherapy in any state, regardless of the reason, as this is beyond the scope of practice.