1994 ITE Question 171 (k-type):
A 36yo woman is scheduled for laparoscopy. She has a history of WPW syndrome and is currently taking no medications. Ten minutes after starting the laparoscopic procedure, she develops SVT with a HR of 220 bpm, BP of 90/60 mmHg, and wide QRS complexes. Appropriate therapy includes:
1) adenosine
2) propranolol
3) cardioversion
4) digoxin
Answer: B
Why wouldn't propranolol be acceptable? Is it due to its relatively longer onset of action compared to esmolol?
A 36yo woman is scheduled for laparoscopy. She has a history of WPW syndrome and is currently taking no medications. Ten minutes after starting the laparoscopic procedure, she develops SVT with a HR of 220 bpm, BP of 90/60 mmHg, and wide QRS complexes. Appropriate therapy includes:
1) adenosine
2) propranolol
3) cardioversion
4) digoxin
Answer: B
Why wouldn't propranolol be acceptable? Is it due to its relatively longer onset of action compared to esmolol?