Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to clean a syringe [title] Clean syringes immediately before and after using them. [step] This may seem like a troublesome routine. However, cleaning syringes right before and after using them will greatly reduce the chances of catching a blood borne disease, like hepatitis or hiv.

Ending1: This will also prevent blood from hardening in the syringe. [title] Prepare your disinfecting area. Ending2: Unless your baby is allergic to blood, do it before or after eating it to speed up the cleaning process. [substeps] Some syringes are designed to be disinfected thoroughly before and after use. Ending3: Sterilize and disinfect the veins before and after using syringes and needles, and then wash them under cool water and soap. [substeps] Make sure to sterilize and dry the vials completely before using the syringes. Ending4: It can also decrease cellular waste produced from touching the needle. When using syringes, it's important to clean out disposable syringes, and rinse well after each dose.

Answer format: ending1/ending2/ending3/ending4