After laying the groundwork for a decisive vote this week on the Senate’s health-care bill, House Speaker Nancy Pelosi suggested Monday that she might attempt to pass the measure without having members vote on it. Instead, Pelosi (D-Calif.) would rely on a procedural sleight of hand: The House would vote on a more popular package of fixes to the Senate bill; under the House rule for that vote, passage would signify that lawmakers “deem” the health-care bill to be passed. The tactic — known as a “self-executing rule” or a “deem and pass” — has been commonly used, although never to pass legislation as momentous as the $875 billion health-care bill.