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40 Possible Causes for P Wave Absent, Prolonged QT Interval

  • Electrolyte Imbalance

    Prolonged QT interval D. Shortened ST segment 68. A. Prominent U waves B. Prolonged PR interval C. Depressed ST segment D. Widened QRS complexes 69. A. Alcoholism B.[proprofs.com] U waves B. Absent P waves C. Elevated T waves D. Elevated ST segment 57. A. Obtaining a controlled IV infusion pump B. Monitoring urine output during administration C.[proprofs.com]

  • Atrial Fibrillation

    From a cardiac perspective, crizotinib is associated with 2 main cardiac effects, QT interval prolongation and bradycardia.[ncbi.nlm.nih.gov] P waves are absent and replaced by irregular electrical activity. The ventricular rate is irregular and chaotic.[web.archive.org] […] response NA ( 234) Potential adverse effects include prolonged QT interval and various proarrhythmias Use is restricted to trained prescribers and facilities In-hospital[aafp.org]

  • Hyperkalemia

    interval, prolonged PR interval, prolonged QRS interval, loss of P wave, sine waves and finally ventricular fibrillation (see ECG guideline for normal values for age) ECG[starship.org.nz] Role of inducing K loss via the GI tract in the management of hyperkalemia Setting Recommendations Hyperkalemia with severe ECG changes (e.g. absent P waves, wide QRS complex[doi.org] […] changes (prolonged PR, QRS and QT intervals) at magnesium levels of 2.5–5 mmol/L to AV nodal conduction block, bradycardia, hypotension and cardiac arrest at levels of 6–[doi.org]

  • Ventricular Fibrillation

    ECG : [ 1 ] evidence of MI, prolonged QT interval, short PR, WPW pattern or other conditions. CXR: signs of left heart failure, pulmonary hypertension.[patient.info] Answers Rhythm: Irregular Rate: Unable to determine P Wave: absent PR interval: absent QRS: absent Interpretation: Ventricular Fibrillation (Fine) Description The morphologic[ekg.academy] Answers Rhythm: Irregular Rate: Unable to determine P Wave: absent PR interval: absent QRS: absent Interpretation: Ventricular Fibrillation (Fine)[ekg.academy]

  • Acute Kidney Failure

    Therefore urine will be dilute ( Other Tests An ECG is important to look for changes of hyperkalaemia (absent p-wave, tall tented T-wave, wide QRS complex becoming sinusoidal[web.archive.org]

  • Atrial Flutter

    Youssef and Farid ( 15 ) discussed how ketosis may lead to a prolonged corrected QT interval and QT dispersion, thus evoking arrhythmias because of alteration in action potential[clinical.diabetesjournals.org]

  • Cardiopulmonary Resuscitation

    Prolongation of QT interval with myocardial contusion. Heart Lung 1978 ; 7 : 652 –6. Blair E, Topuzlu C, Davis JH. Delayed or missed diagnosis in blunt chest trauma.[web.archive.org] As serum potassium rises, the ECG may progressively develop flattened or absent P waves, a prolonged PR interval, widened QRS complex, deepened S waves, and merging of S and[doi.org] […] flaccid paralysis, paresthesia, depressed deep tendon reflexes, or respiratory difficulties, 200 – 202 the first indicator of hyperkalemia may be the presence of peaked T waves[doi.org]

  • Atrial Standstill

    T wave inversion in V1 to V6 was prominent, and corrected QT interval (QTc) was prolonged to 0.55 seconds ( Fig. 1A ).[synapse.koreamed.org] Diagnostic criteria of atrial standstill Absent P waves both on surface and intracardiac ECG. Junctional bradycardia.[metealpaslan.com] EKG Absent P waves. JVP Absent A waves.[medical-dictionary.thefreedictionary.com]

  • Accidental Hypothermia

    QT interval, adjusted for HR, was prolonged in 72.8% of the cases.[ncbi.nlm.nih.gov] His bundle electrocardiography was performed on a patient with accidental hypothermia on whom the standard electrocardiogram (ECG) showed absent P waves, prominent J waves[ncbi.nlm.nih.gov] 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]

  • Ventricular Tachycardia

    The patient's initial electrocardiogram was remarkable for a prolonged QT interval, and it was discovered that multiple family members had died of cardiac events as young[ncbi.nlm.nih.gov] Answers Rhythm: Regular Rate: 150 P Wave: absent PR interval: n/a QRS: Wide and bizarre Interpretation: Ventricular Tachycardia[ekg.academy] Triggered Activity – QRS falling on T-wave – occurs with prolonged QT interval - Electrolytes – Hypokalemia, Hypomagnesemia, Hypocalcemia - Drugs that prolong QT interval[errolozdalga.com]

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