stress test Flashcards

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

A

bruce

25
Q

it has 3-minute periods to allow achievement of a steady
state before work-load is increased for next stage

A

Bruce Protocols

26
Q

Termination of Exercise Testing

A

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
Q

A flat or down sloping depression of the ST
segment > 0.1 mV below baseline

A

positive test

28
Q

▪ Target heart rate is not achieved
▪ 85% of maximal predicted heart for age and sex
is not achieve

A

negative test

29
Q

limitation of treadmill stress test - Sensitivity

A

68%

30
Q

limitation of treadmill stress test - Specificity

A

77%

31
Q

if symptoms are normal, and results continue to worsen the
doctor might recommend

A

nuclear stress test

32
Q

more accurate, but more expensive

A

nuclear stress test

33
Q

Not used in cases in patient with asthma or Chronic
obstructive pulmonary disease

A

Vasodilators such as: Adenosine and Dipyridamole

34
Q

Makes heart response as person is exercising

A

Dobutamine

35
Q

NUCLEAR STRESS TEST also known as

A

“Myocardial perfusion imaging

36
Q

what instrument is injected in the arm of the patient

A

radiotracer