stress test Flashcards

(36 cards)

1
Q

Angina (chest pain) was first described in ______ by ______

A

1772 by William Heberden

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2
Q

it represents the interval
between ventricular depolarization and repolarization

A

Electrocardiogram (ecg)

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3
Q

ST depression first noted during angina

A

(Bousfield) in 1918

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4
Q

ST changes during exercise (sit ups) are associated with chest pain
& decreased cardiac blood flow

A

(Feil & Siegel) in 1928

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5
Q

Master’s Step test, first “standard” exercise protocol

A

Arthur Master in 1929

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6
Q

ST depression is present in only 75% of patients with angina during
exercise (similar to percentages today)

A

Goldhammer & Scherf in 1932

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7
Q

First to use maximal exercise testing to test for CAD → climbing stairs

A

(Morris Missal) in 1938

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8
Q

Support the study of Bousfield through ST segment
depression

A

Riseman et al. in 1940

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9
Q

Sensitivity of post-exercise ECG

A

Master & Jaffe in 1941

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10
Q

The Harvard Step Test used to assess fitness from HR during
recovery.
Measures endurance, develop during second world war.
Type of cardiac step test for detecting and diagnosing cardiovascular disease

A

(Johnson et al in 1942

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11
Q

Maximal exercise (stair climbing) was more sensitive (88%) to
detect CAD than submaximal exercise (39%) (

A

Wood et al in 1950

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12
Q

Treadmill testing used with set criteria to screen for CAD

A

(Yu et al. in 1952

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13
Q

Astrand test → a submaximal cycle ergometer aerobic fitness
test based on relationship between heart rate during work and
percentage of maximal aerobic capacity

A

Astrand, P.-O. & Ryhming in 1954

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14
Q

established the guidelines used today: treadmill, with
EKG, during exercise
* Exercise protocol to classify according to New York Heart
Association Criteria
* Initiate Contemporary era of exercise testing for diagnostic
and prognostic purposes

A

robert bruce in 1956

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15
Q

o measure heart’s ability to respond
to external stress in a controlled clinical environment

A

stress testing

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16
Q

Types of Stress Testing

A
  • Exercise
  • Pharmacologic
  • nuclear
17
Q

example of Pharmacologic

A
  • regadenoson
  • dobutamine
  • persantine
  • adenosine
18
Q

most common test used

A

exercise stress test

19
Q

it usually involves walking on a treadmill or riding a
stationary bike

A

exercise stress test

20
Q

Indications of Exercise Testing

A

Diagnose coronary artery disease
Diagnose heart rhythm problems

21
Q

risks of the test

A

low blood pressure
abnormal heart rhythm
heart attack

22
Q

Used sticky patches (electrodes) on chest legs and
arms

A

treadmill test

23
Q

Treadmill protocols

A

✓ Bruce
✓ Cornell
✓ Balke ware
✓ Acip
✓ mAcip
✓ Naughton
✓ Weber

24
Q

commonly used treadmill protocols

25
it has 3-minute periods to allow achievement of a steady state before work-load is increased for next stage
Bruce Protocols
26
Termination of Exercise Testing
o Moderate to severe chest pain o Severe shortness of breath o Abnormally high or low blood pressure o An abnormal heart rhythm o Dizziness o Fatigue o Certain changes in your electrocardiogram
27
A flat or down sloping depression of the ST segment > 0.1 mV below baseline
positive test
28
▪ Target heart rate is not achieved ▪ 85% of maximal predicted heart for age and sex is not achieve
negative test
29
limitation of treadmill stress test - Sensitivity
68%
30
limitation of treadmill stress test - Specificity
77%
31
if symptoms are normal, and results continue to worsen the doctor might recommend
nuclear stress test
32
more accurate, but more expensive
nuclear stress test
33
Not used in cases in patient with asthma or Chronic obstructive pulmonary disease
Vasodilators such as: Adenosine and Dipyridamole
34
Makes heart response as person is exercising
Dobutamine
35
NUCLEAR STRESS TEST also known as
“Myocardial perfusion imaging
36
what instrument is injected in the arm of the patient
radiotracer