DVT and Homan's sign

I have been told two seperate things by two different teachers about DVT signs. One is saying to use Homan's sign of forcefully dosiflex the foot to check for DVT. Calf pain would indicate a positive Homan's sign and possible DVT. Another teacher is telling me they do not do Homan's anymore because of possibly dislodging the clot and to squeeze the calf with both hands instead to check for calf pain. I asked the other teacher about this and she said no squeezing the calf could dislodge the clot and not to do that. Help! Which should I do?

The latest in critical nursing, is never do the Homans. There are so many good non invasive ways to DX a DVT now , that the Homans is outdated and dangerous. Besides, you can document all of the pt symptoms etc. But as nurses we can't make a Dx. so why do the sign. Just document, redness, edema etc...never document that you did the Homans. (CYA)