Quick answerOptions 1, 3, and 5 use two person-specific identifiers.
Why this is correctThe Joint Commission requires at least two person-specific identifiers, such as name, date of birth, or medical record number, before medications, blood products, specimen collection, and procedures. The identifiers can be stated by the client (option 1) or read from the band attached to the client when he cannot respond (option 3), and specimen containers are labeled with two identifiers checked against the band in the client's presence (option 5).
Easy analogy or mental pictureIdentification is like a two-factor login: two things that belong to the person, checked every time you log in, not a guess about which desk the person usually sits at.
Memory hookTwo different person facts, from the person or the band on the person. Same fact twice, loose labels, and provider names do not count.
NCLEX decision ruleCount the identifiers: accept a method only if it uses two different person-specific identifiers taken from the client or the band attached to the client and matched to the order, MAR, or label.
Why the other choices are wrongName stated and matched to the band (option 2): tempting because two sources agree, but it is the same identifier checked twice, so only one identifier has been used. Spare label sheet barcode (option 4): tempting because barcode scanning is an accepted method, but the scan must be of the band attached to the client; a loose label sheet could belong to anyone and verifies no person. Name plus attending provider (option 6): tempting because both are printed on the band, but a provider's name is shared by many clients and is not a person-specific identifier.
References
1The Joint Commission National Patient Safety GoalsNPSG.01.01.01: use at least two person-specific identifiers such as name, birth date, or record number; label containers in the patient's presence