Finding a laon offer which accepts BTC as a collateral might be difficult, but it's worth the shot.
It's possible if both lender and borrower agree on topping up if the btc value goes down against USD.
For example if the OP could offer something like 1 BTC for a $35k loan (1BTC = $42,370 right now) and if price drops under $37k then within x hours he will top up $5k to $7k worth of BTC then the lender will feel comfortable to lend him. If he do not top up then lender can just cash out without losing USD value.