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32 Possible Causes for Flattened T Wave, Patient Appears Acutely Ill

  • Acute Pericarditis

    Stages 2, 3, and 4 ECG findings consist of ST-segment normalization and T wave flattening, T wave inversion, and normalization of T waves, respectively.[cfp.ca] flatten; stage 3: symmetric T wave inversion throughout ECG; and stage 4: ECG normalization 2 .[jetem.org] (1 to 3 weeks) Stage 3 – flattened T waves become inverted (3 to several weeks) Stage 4 – ECG returns to normal (several weeks onwards) NB.[lifeinthefastlane.com]

  • Lithium Toxicity

    Cardiovascular side effects are usually mild and manifest as nonspecific ECG changes, such as ST-T flattening and T-wave inversion.[calpoison.org] The most common electrocardiographic finding is T-wave flattening.[emedicine.medscape.com]

  • Digitalis Toxicity

    Electrocardiographic signs of digitalis toxicity include first-degree atrioventricular (A-V) block with depressed S-T segments, shortened Q-T intervals, and flattened T waves[medical-dictionary.thefreedictionary.com]

  • Hypokalemic Periodic Paralysis

    Some electrocardiographic (ECG) findings associated with hypokalemia include flattened or inverted T waves, a U wave and ST depression.[flipper.diff.org]

  • Acute Mountain Sickness

    Wilderness Environ Med. 2014 Mar;25(1):60-8. doi: 10.1016/j.wem.2013.10.006. Epub 2014 Jan 24. Author information 1 Department of Emergency Medicine, Saint Vincent Health Center, Erie, PA (Dr Karle). Electronic address: [email protected] 2 Division of Emergency Medicine, Department of Surgery, Stanford University[…][ncbi.nlm.nih.gov]

  • Post-Infarction Pericarditis

    In the study, 19 patients were operated on for FWR, but these patients did not appear to do better than patients who did not undergo surgery.[circ.ahajournals.org] (1 to 3 weeks) Stage 3 – flattened T waves become inverted (3 to several weeks) Stage 4 – ECG returns to normal (several weeks onwards) NB.[lifeinthefastlane.com] waves flatten.[merckmanuals.com]

  • Familial Periodic Paralysis

    Answer and interpretation The ECG findings include: Sinus rhythm with a rate of 70bpm Normal axis Flattened T waves with the presence of U waves.[lifeinthefastlane.com] The ECG may show sinus bradycardia with evidence of hypokalaemia, including flattening of T waves, U waves in leads II, V2, V3, and V4, and ST segment depression.[patient.info]

  • Accidental Hypothermia

    In hypercalcemia, the ECG shows a shortened QT interval, flattened T waves and QRS widening at very high levels. 4. Atrial fibrillation.[foamcast.org] Multiple other findings eventually develop including a shortened QT interval, ST depression, bundle branch blocks, widened QRS, prolonged PR interval, flattened T wave and[foamcast.org] The ECG manifestations of hyperkalemia begin with peaked T waves.[foamcast.org]

  • Thyrotoxic Heart Disease

    Hypothyroidism and the Heart ECG Changes in Hypothyroidism Sinus bradycardia T wave flattening T wave inversion ST segment depression Low QRS voltages QTc is usually normal[ecgmojo.com]

  • Kawasaki Disease

    , any patient in whom Kawasaki disease is strongly suspected should receive echocardiography because abnormalities that aid in diagnosis may appear within the first 10 days[aafp.org] These changes include decreased R-wave voltage, ST-segment depression with T-wave flattening or inversion and a prolonged PR or QT interval (or both). 3 Coronary artery abnormalities[web.archive.org] These changes include decreased R-wave voltage, ST-segment depression with T-wave flattening or inversion and a prolonged PR or QT interval (or both). 3 TABLE 3 Cardiac Findings[aafp.org]

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