Pharmacological Stress testing

Question 1

effects of adenosine

Answer 1

incr. hrt. rate by 15bpm BP reduced by 10% low grade AV blocks

Question 2

Adenosine

Answer 2

increases Coronary blood flow 4-6 times over baseline side effects are short lived

Question 3

affects of the dipyridamole

Answer 3

20% incrs. hrt rate over baseline 10 mmHg fall in BP effects more pronounced in patients who develop ST depression

Question 3

side effects most common with this drug

Answer 3

adenosine

Question 4

side effects are less common with this drug

Answer 4

dobutamine

Question 5

dipyridamole should not be used on patients who have

Answer 5

angina acute infarct asthma (bronchospasms can occur)

Question 6

non cardiac side affects to dipyridamole

Answer 6

head ache flushing dizziness GI upset

Question 7

Dobutamine is the preferred method for patients wtih

Answer 7

restrictive airways disease

Question 7

vasodilator imaging is preferred in patients with a fixed _______

Answer 7

LBBB

Question 9

sensitivity of dipyridamole thallium imaging is _______

Answer 9

85-90% increase with multiple vessel disease

Question 10

why do we use pharmacological stress testing

Answer 10

certain patients cannot perform a stress test

Question 11

test is used before ___________

Answer 11

surgeries

Question 12

side effects of adenosine

Answer 12

chest pain dyspnea ( bronchospasms ) flushing

Question 13

vasodilator agents

Answer 13

acts by blocking cellular uptake and inhibiting adenosine breakdown

Question 13

Dobutamine (dobutrex)

Answer 13

lesser effect than other drugs half life is 2 mins intravenously

Question 15

example of vasodilator

Answer 15

dipyridamole (persantine)

Question 17

contraindications for dobutamine

Answer 17

acute MI, unstable angina, ventricular or atrial arrythmias

Question 18

nuclear profusion imaging is the preferred technique for the use of which drug

Answer 18

dobutamine infusion