tet spells是啥意思?谢谢
A preoperative 3-year-old exhibits ”tet spells.” An agent that may reduce right-to-left shunt in tetralogy of Fallot is
(A) sodium nitroprusside
(B) labetolol
(C) propranolol
(D) phenylephrine
(E) diltiazem
(D) Increased peripheral resistance may reduce cyanosis in tetralogy of Fallot.
最后编辑于 2022-10-09 · 浏览 1988