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56 Possible Causes for Flattened T Wave, Wide QRS Complex

  • Quinidine

    T waves (without dysrhythmia), have occurred frequently and hypotension and ventricular tachycardia have occurred occasionally in patients receiving IV quinidine gluconate[drugs.com] Other ECG effects include a wide notched P wave, wide QRS complex, depressed ST segment, and U waves.[en.wikipedia.org] […] measures may be required. b While substantial cardiovascular toxicity generally has not occurred, ECG changes, including prolonged QT interval, widened QRS complex, and flattened[drugs.com]

  • Hypokalemia

    […] than the T wave. flattening of the T wave.[healio.com] T wave of the electrocardiogram, and muscle weakness.[medical-dictionary.thefreedictionary.com] EMAIL PRINT SAVE EMAIL SAVE The typical ECG findings of hypokalemia (low potassium level) include: U wave that occurs just after the T wave and is usually of smaller amplitude[healio.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]

  • Digoxin

    , inverted, or biphasic T waves .[lifeinthefastlane.com] . - Flattened, negative or biphasic T waves. - QT interval shortening. - U wave amplitude may increase.[metealpaslan.com] […] demonstrating the Digoxin Effect Digoxin effect refers to the presence on the ECG of: Downsloping ST depression with a characteristic “Salvador Dali sagging” appearance Flattened[lifeinthefastlane.com]

  • Electrolyte Imbalance

    Clinical signs of hyperkalaemia include muscle weakness, hypotension , bradycardia and loss of cardiac output, and ECG changes may include peaked T waves and flattened P waves[ausmed.com]

  • Digitalis

    , complex tachycardia and if fascicular tachycardia has been ruled out Criteria for hospital admission New cardiac dysrhythmias Severe bradyarrhythmias Advanced AV block Acute[emedicine.com] […] prolongation of the QRS interval Severe electrolyte abnormalities, especially hypokalemia or hyperkalemia Dehydration Inability to care for self Suicidal ideation See Treatment[emedicine.com] Cardioversion for severe dysrhythmias due to digitalis can precipitate ventricular fibrillation and asystole but may be used if the patient is hemodynamically unstable and has a wide[emedicine.com]

  • Phenothiazine

    Phenothiazine, 98 % MDL MFCD00005015 EINECS 202-196-5 Chemische Eigenschaften Formel C 1 2 H 9 NS Molmasse 199.28 Schmelzpunkt 182-186 Siedepunkt 235 /21mm Storage & Sensitivity Store under Argon. Light Sensitive. Ambient temperatures. Löslichkeit Soluble in water (0.13 mg/ml at 23 C), ethanol, acetone, and ether.[…][alfa.com]

  • Hyperkalemia

    P wave flattening, may disappear increased amplitude and width PR interval prolonged prolonged QRS interval prolonged ST segment slight depression T wave increased amplitude[rccc.eu] QRS complexes.[ncbi.nlm.nih.gov] Flattened P-waves Widened QRS complex Deep S-waves Eventually, merging of S and T waves Trend towards sine-wave at K over 7mmol/L Management of hyperkalemia The recommendations[derangedphysiology.com]

  • Diffuse Intraventricular Block

    wave causes of tall T waves include hyperkalaemia, hyperacute myocardial infarction and left bundle branch block causes of small, flattened or inverted T waves are numerous[ecglibrary.com] Note that other causes of wide QRS complex must always be considered.[ecgwaves.com] T wave inversions and T wave flattening are sometimes present for no clear clinical reason, hence are referred to as “non-specific T wave abnormalities.” B.[clinicaladvisor.com]

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