With 1:10 left in the third quarter, Jamison's dunk attempt was blocked by Wizards center Kevin Seraphin. Jamison, who scored 11 points in the game, did not return.
X-rays taken on the wrist after the game were negative. Jamison left Staples Center with his wrist in a brace.
A Lakers spokesman said Jamison will have an MRI exam on Saturday.
Jamison has averaged 9.3 points a game for the Lakers on 47.3 % shooting from the field and 35.4% from three-point range.
The Lakers (36-34)have had injury issues all season. The full contingent of players has had a single game together, an opening-night loss to the Dallas Mavericks.
It would be par for the course if Jamison's wrist becomes an issue over the final weeks of an injury-plagued season.ALSO: