Apparatus for allowing measurements to be made of a blood sample comprises a shaft and at least first and second blood collection members. The blood collection members are independently rotatable about the shaft. Each blood collection member includes: a blood analysis part for receiving a blood sample, plural conductive contacts, and plural conductors extending between the blood analysis part and respective ones of the conductive contacts. The apparatus also includes plural terminals configured to provide an electrical connection with the plural conductive contacts on a first member when the apparatus is in a first configuration and to provide an electrical connection with the plural conductive contacts on a second member when the apparatus is in a second configuration, thereby allowing successive measurements of at least one parameter of blood samples provided on the blood analysis parts of the first and second members.
