1.   Neither an initial electrocardiogram nor blood tests to measure what are known as cardiac enzymes showed any evidence of a heart attack, hospital officials said.

2.   The first blood tests for cardiac enzymes had not been completed.

3.   Three sets of cardiac enzymes are normal indicating no damage to the heart muscle.

4.   But new tests they had received two hours earlier revealed elevated levels of cardiac enzymes indicating a heart attack.

5.   Hughes said EKG tests on Cheney, who has a history of heart trouble, showed no abnormality and blood tests showed that his cardiac enzymes were normal.

6.   Karen Hughes, a spokeswoman for Bush, said EKG tests on Cheney showed no abnormality and blood tests showed that his cardiac enzymes were normal.

7.   She said blood tests showed that his cardiac enzymes were normal.

8.   She said EKG tests showed no abnormality and that blood tests showed that his cardiac enzymes were normal.