B. Silver 25. All the following impression materials can be mixed with an automixing system except
D. Tin
B. addition-reaction silicone.
C. polysiloxane.
D. polysulfide.
A. polyether.

c is the answer. hope this

1) a

2)c

3)a

4)c

5)b

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bradycardia ( blood presssure below 120/80mmhg )

it is contraindicated to give nitroglycerin to patients with blood pressure that is lower than normal range because the drug can cause blood pressure to drop further. it can lead to paradoxical bradycardia and less commonly, threatening hypotension.