Prehabilitation interview Flashcards
What Cardio-Pulmonary Exercise Testing Value is indicative of low physical function?
<80% of age predicted maximum
What peak oxygen consumption value is determine high risk and very high risk for peri-operative complications?
High risk: 10-14 ml/kg/min
Very high risk <10ml/kg/min
What VO2 at the anaerobic threshold is considered high and very high risk for post-operative complications?
High risk: <11ml/kg/min
Very high risk: <9ml/kg/min
What ventilatory efficiency slope is considered very high risk and high risk for post-operative complications?
High risk: 34-36
Very high risk >36
How is the anaerobic threshold physiologically related to outcomes in cancer patients
Oxygen demand increases 10 to 50% from surgery. Anaerobic metabolism can exacerbate tissue injury and indicates decreased ability to deliver and oxygen impairing tissue perfusion.
How is the VE/VCO2 slope physiologically related to outcomes in cancer patients?
Ventilatory efficiency reduces increasing demand on the heart to make up for it. Anaesthetic can depress ventilatory drive which if already poor can lead to hypoxemia.
What are the 10 absolute contraindications to to symptom-limited maximal exercise testing?
1) Acute myocardial infarction (within 2 days)
2) Ongoing unstable angina
3) Uncontrolled cardiac arryhythmia with hemodynamic compromise
4) Active endorcaditis
5) Symptomatic severe aortic stenosis
6) Decompensated heat failure
7) Acute pulmonary embolism, pulmonary infarction or DVT
8) Acute myocarditis or Pericarditis
9) Acute aortic dissection
10) Physical disability precluding safe or adequate testing
What are the 8 relative contraindications to symptom limited maximal exercise testing?
1) Left main coronary artery stenosis
2) Asymptomatic aortic stenosis
3) Tachyarrhythmia with uncontrolled rate
4) Acquired advanced or complete heart block
5) Recent stroke or TIA
6) Mental impairment with limited cooperation
7) Resting hypertension >200 mmHg or diastolic >110 mmHg
8) Uncontrolled medical conditions such as significant anaemia, important electrolyte imbalance and hyperthyroidism
What is the range of moderate intensity for a treadmill and bike in terms of speed?
Treadmill: 3.0-4.5mph
Cycling: 9-15 mph
Briefly outline the methods and results from Mandsager (2018) in the JAMA journal and the 2 main findings
Method: 122 007 patients with a median follow up of 8.4 years
Result:
1) Top 2.5% 5 fold all-cause mortality vs. bottom 25%
2) Below vs. Above: 41% CRF, 41% Smoking, 40% Diabetes - Risk Adjusted decreases in all cause mortality
Briefly outline the methods and the main results from the paper “Physical fitness and activity as a separate heart disease risk factor: a met-analysis” Williams 2001 - Medicine and Science
- Method: Meta-analysis in 23 cohorts (16 activity, 7 fitness)
1) Physical fitness about 65% relative risk reduction and physical activity 25% at the top end
2) Significant difference between the two at all quartiles
What signs and symptoms immediately require medical referral?
1) Pain
2) Dyspnea
3) Dizziness
4) Orthopnea
5) Edema
6) Palpitations
7) Intermittent claudication
What two situations is medical clearance needed?
1) Known CV, metabolic and renal disease with no previous activity
2) Any signs and symptoms suggestive or CV, metabolic or renal disease with or without previous PA
How should a exercise programme start for someone with no exercise history?
Light to moderate exercise intensity
Based on HRR, RPE and effort - define light activity
30-39% HRR, RPE 9-11, Barely noticeable increase in breathing
Based on HRR, RPE and effort - define moderate activity
40-59% HRR, 12-13 RPE, Noticeable increase in HR and breathing
Based on HRR, RPE and effort - define vigorous activity
> 60% HRR, >14 RPE, substantial increases in hear rate
What is the equation for heart rate reserve
HRR = Maximum Heart Rate - Resting Heart
= Heart Rate Reserve
(Heart rate reserve x training %) + resting heart rate = Intensity
What 8 criteria would identify patients who require a specialist intervention if one is met?
1) LVEF <40%
2) Survivor of cardiac arrest
3) MI or Cardiac Surgery with post-intervention ischemia
4) Abnormal hemodynamics with exercise
5) Exercise intolerance symptoms <5.0 METs
6) Significant silent ischemia (>2mm depression)
7) Functional capacity <5.0 METs
What are the 8 risk factors for CVD?
1) Age: >45 Men, >55 Women
2) Family history
3) Cigarette smoking
4) Physical inactivity
5) Obesity (BMI: >30 kg/m2, WC >40 inch M or >38 inch W)
6) Blood pressure: >130/>80 (Either)
7) Dyslipidaemia: LDL>130 mg/dL, <50 mg.dL HDL
8) Blood glucose >100 mg.dL (fasting value)
HbA1C >5.7%
Where is waist circumference measured from
Above the belly button but below the ribs - narrowest point
What 8 elements should be included when providing informed consent
1) Informed of programme
2) Purpose of test
3) Risks
4) Responsibilities
5) Benefits to be expected
6) Inquiries
7) Statement of confidentiality
8) Freedom of consent
What 7 elements does a comprehensive fitness evaluation
1) Informed consent,
2) Preparticipation health screening
3) Resting measures
4) Circumference and body composition
5) Measurements CRF,
6) Measurement muscular fitness
7) Measurement of flexibility
What intensity must heart rate be maintained at for the Astrand 6 minute cycle/arm test
125-170 bpm