Med Testing-Guest Lectures

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bcb2127
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152057
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Med Testing-Guest Lectures
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2012-05-03 23:34:29
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Guest lectures
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Med Testing-Guest Lectures
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  1. Placement of 3-lead EKG is:

    _____ over R and ____ over ____.
    White over R and smoke (black) over fire (red)
  2. ____ _____: iatrogenic condition of the heart; P and T waves overlap; very quick

    _____: can reset AV node and turns off conduction of heart for a few seconds to normalize.
    Supraventricular Tachycardia

    Adenosine
  3. ____ ____: no defined P or T wave; QRS complex equal distances apart (shark teeth)

    ___ ____: non-equal QRS, no defined P or T's; can be faint, cool/clammy with palpitations
    Atrial flutter

    Atrial fibrillations
  4. ___ ____ ____: abnormal, random QRS complexes among normal complexes. Bad news if trigeminy or bigeminy of these occur. Precursor for ______ _____.
    Premature Ventricular Complexes

    Ventricular Tachycardia
  5. ____ ______: wide QRS complexes; may be alive and feel ok, but take BP and get to ER if found. If unconscious, complete CPR and use ____
    • Ventricular Tachycardia
    • AED
  6. ___ ____: very random electrical signal in heart; no CO and patient is most likely unconscious. AED and CPR must be used.
    Ventricular Fibrillation
  7. ______: no signal of the heart at all! Check ____ and ____ before you signify death has occurred. Shocking the heart is not possible during this stage.
    • Asytole
    • leads and electrodes
  8. Heart Block: ____ ____: far apart P's
    first degree
  9. Heart Blocks: ____ ____: multiple P's before QRS complex (further away)
    second degree
  10. Heart Blocks: ____ ____: random P's and QRS complexes; no CO-very serious
    third degree
  11. ST segment elevation indicates: _______
    myocardial infarction
  12. ST segment depression indicates: _______
    myocardial ischemia
  13. ________: takes over the activity of the SA node; creates _____ spike with no P wave
    • pacemakers
    • pacer
  14. ______: blood viscosity; Normal range: ___ - ____

    Elevated troponin indicates heart muscle distress or _____.

    _____: used for diabetes testing
    • INR; .8-1.2
    • MI
    • HgA1C
  15. Complete Blood Count (CBC):
    WBC:_____
    RBC: ______
    HGB: ______
    HCT:_______
    • 3.6-11.2 K/cmm
    • 4.1-5.7M/ul
    • 13.1-16.8g/dl
    • 38.2-48.4%

    or just know the ones for CMI...
  16. BMP: _____ _____ _____
    -includes sodium, potassium, chloride, CO2, Urea, Creatinine, Glucose and Calcium
    basic metabolic panel

    ...know the values if you want...
  17. Normal HgA1C: ____-____ %

    >____% equals risk for vision loss, nerve damage, heart disease...
    • 4-6%
    • 7%
  18. ____ ____: marker for MI
    -total value for markers less than ____ U/L
    • creatine kinase
    • 230
  19. Negative Troponin levels: ____ - ____
    Intermediate Troponin levels: ____ - _____
    Positive Troponin levels: _____ - _____
    • 0.00-0.022ng/ml
    • 0.023-.299ng/ml
    • >/= .3ng/ml
  20. HGB norms for male and female?

    ____: don't get up
    ____: don't exercise
    • 14-17
    • 12-15
    • <8
    • <7
  21. Hematocrit for males and females?

    ____: don't exercise
    ____: light ex
    ____: add resistance
    • 41-52%
    • 35-46%

    • <25
    • 25-30
    • >30
  22. Typical goal for blood viscosity (_ _ _) post joint replacement is ___ -____.

    Goal for post heart valve transplant: ___ -___

    Generally, PT is deferred if _ _ _ is above ___.
    • INR
    • 2.0-3.0
    • 2.5-3.5
    • INR
    • 6
  23. NCV (___ ___ ____) use electrical stim up to ____ mA; objective study.

    CMAP: ___ ____ ____ ___; combo of all muscular motor APs
    • nerve conduction velocity
    • 100
    • Compound motor action potential
  24. _______: invasive procedure and uses needle to penetrate skin to listen to conduction; subjective; does not use electrical stim
    Electromyography (EMG)
  25. ____ _____: nerve cell and all the muscle fibers innervated by that nerve cell.

    What part of the nerve has the most tensile strength?
    • Motor Unit
    • perineurium (around fasciles)
  26. ______: decrease in chemical in axon, but still alive
    _____: axon dies and ____ degeneration occurs
    • neuropraxia
    • axonotemesis; Wallerian
  27. NCS performed at ___ to ____ days can help differentiate between ______ and ______.

    If ____ occurs, EMG will become abnormal with ____ ____.

    EMG/NCS should not be ordered until __-___ days after onset of symptoms for isolated acute ______ ("Saturday Night Palsy")
    • 7-10 days
    • neuropraxia and axonotomesis

    axonotemesis; denervation potentials

    Axonotemesis
  28. ____ _____: occurs when there is disconnect between the distal nerve endings and the muscle fibers; seen at rest.

    Pathology can come from "sick" nerve (__) or "sick" muscle (___)
    • Denervation potentials
    • neuropathy, myopathy
  29. EMG/NCS can be good for ruling out diagnosis in nonspecific ____/____ patients.

    ____ and _____ pain syndrome will not have EMG/NCS abnormalities.
    • pain/parasthesia
    • fibromyalgia/myofascial pain syndrome
  30. Peak time for eval of radiculopathy is _____ weeks after onset of symptoms.
    three
  31. _____/____ are not contraindicated for NCV
    defribillators/pacers

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