Hemodynamic Monitoring Flashcards
Purpose of hemodynamic monitoring
Assess homeostasis, trends, Observe for adverse reactions, Assess therapeutic interventions, Manage anesthetic depth, Evaluate equipment function
How we monitor oxygenation
Pulse ox, skin color, ABGs, 02 analyzer on machine
How we monitor ventilation
End tidal, breath sounds, flow volume loop, chest rise, movement of respiratory bag
How we monitor circulation
Pulse ox, capillary refill, pulses, a line, skin color, BP, HR, heart sounds
Minimal standard for monitoring
Ecg, bp, pulse ox, 02 analyzer, end tidal co2
Minimal standard on graphic display
Ecg, bp, hr, ventilation status, o2 sat
Considerations when choosing monitoring
Indications, contraindications, risks/benefits, techniques, alternatives, complications, cost
Hemodynamic monitoring
Stethoscope, ecg, bp (invasive or not), cvp, pap, PCwp, tee
What is precordial stethoscope
Continuous heart and breath sounds, goes into esophagus of intubated pts 28 cm, monitors bronchospasm and peds changes
Purpose of ecg
Arrythmia detection, monitor HR, detect ischemia, detect lyte changes, monitor pacemaker function
3 lead ecg electrodes, leads, views
RA, LA, LL. Leads I, II, III. 3 views, no anterior. No LAD view
5 lead ecg electrodes, leads, views
RA, LA, LL, RL, chest. I, II, III aVR, aVL, aVF, V. 7 views
Best lead for arrythmia, for ischemia
II. V5.
What gain and filtering capacity should be set at
Standardization. Diagnostic mode
What filtering capacity is
Filters out unwanted noise/artifact
Indicators of acute ischemia on ECG
ST elevation >1 mm, T wave inversion, Q waves, ST depression, flat or downslope >1 mm. Peaked T waves
Where posterior/inferior wall ischemia shows, artery
RCA. II, III, AVF
Where lateral wall ischemia shows, artery
Circumflex of LCA. I, AVL, V5-V6
Where anterior wall ischemia shows, arty
LCA. I, AVL, V1-4
Where anteroseptal ischemia shows, artery
LAD, V1-V4
What SBP and DBP correlate with
Myocardial o2 requirement changes. Coronary perfusion pressure
MAP calculation
SBP + 2DBP/3
What oscillometry does
Senses fluctuations in cuff pressure made by arterial pulsation when deflating bp cuff. 1st correlates w SBP, max at MAP, cease at DBP. How automatic cuffs work
What bladder width of bp cuff should be
40% of circumference of extremity
What bladder length should be
Encircles 80% of extremity