false raised trop_t

  1. Im not a cardiac nurse but i had a pt with a false trop-t and i curious about what was going on.

    i had a lady tachycardiac 132 with faint radical pulse, rr -23-27
    denies any pain
    reviewed and in atrial flutter, trop-t raised 39(1 day post clipping of pcom) medics said atrial flutter self limiting no treatment ordered
    after handover bloods results potassium was 3.2
    not acute coronary syndrome not ami
  2. 3 Comments

  3. by   nursej22
    We use Troponin I to detect myocardial ischemia but my understanding is that Troponin T is also used.
    Sorry but I do not understand "clipping of pcom" so I am not sure if this contributes to elevated trop.
    Certainly a rapid heart rate can result in decreased blood flow to coronary muscle. Remember coronary arteries perfuse during diastole, so with a rapid HR there is less oxygenated blood flowing to a muscle that is working harder that normal.
    This link may help:
    Troponin test: MedlinePlus Medical Encyclopedia
  4. by   MunoRN
    There's a difference between a false positive troponin and an accurately positive troponin due to non ACS conditions. Troponins can become elevated for a variety of reasons: Elevated cardiac troponin concentration in the absence of an acute coronary syndrome
  5. by   ayla2004
    sorry i work on a neurosurgical ward, the lady had had a subarachnoid hemorrhage (SAH) from a anersyum on her posteior comunicating aretery so had a craintomy and clipping and I is was wondering if surgery could effect trop=t (anything over 14 is raised)

    as i said she was deemed to be in atrial flutter her dbp stayed around 90ish the entire time.

    Last edit by ayla2004 on Mar 2, '14

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