This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to remove blood stains from a mattress
Strip the bed.
To remove any stain from the mattress, you'll have to be able to access the mattress directly. Remove pillows, comforters, duvets, sheets, and anything else from the bed that's covering the mattress.

Possible answers: --If you have to, you should also check the sheets. Alternatively, you can swab them with a cotton swab to remove any bacteria.; --For pillows and duvets (besides upholstered versions), go to a thrift store and buy a couple of them. They should work great, and they won't bleed.; --Set pillows and decorative items aside so you don't trip on them while you're working. Pre-treat sheets, pillow cases, comforters, and other washable bedding with an enzyme cleaner or stain remover if there's blood on them.; --Use a toothbrush or a sponge to remove any stubborn dirt or debris. Only wash discolorated materials like curtains, sheets, and covers as well.;
The answer is:
Set pillows and decorative items aside so you don't trip on them while you're working. Pre-treat sheets, pillow cases, comforters, and other washable bedding with an enzyme cleaner or stain remover if there's blood on them.