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90 Possible Causes for Dizziness, Flattened T Wave, Prolonged QT Interval

  • Hypokalemia

    Clinical features include transient periods of muscle weakness and tetany, dizziness, abdominal pains and constipation.[ncbi.nlm.nih.gov] […] than the T wave. flattening of the T wave.[healio.com] SCN5A-1103Y was associated with QT interval prolongation (2.7 milliseconds; P .001) and potentiated the effect of hypokalemia on QT interval prolongation (14.6 milliseconds[ncbi.nlm.nih.gov]

  • Mitral Valve Prolapse

    MVP is usually asymptomatic in the absence of significant regurgitation, although there are reports that some patients experience chest pain, dyspnea, dizziness, and palpitations[merck.com] Her post-resuscitation ECG showed a prolonged QT interval which progressively normalised over the same day.[ncbi.nlm.nih.gov] In some individuals, MVP is silent or associated with palpitations, dizziness, chest pain, and abnormal electrocardiogram (ECG) repolarization with or without ventricular[dx.doi.org]

  • Electrolyte Imbalance

    The symptoms of an electrolyte imbalance can include: fatigue dizziness nausea weakness Chemotherapy can cause your electrolyte levels to become too low or too high.[breastcancer.org] 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] 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]

  • Quinidine

    Rhinitis Angioedema Tinnitus Vertigo Dizziness Fatigue Hot sweaty skin Fever Rash Blurring of vision Dizziness Nausea Vomiting Diarrhea Abdominal pain Headache Impaired hearing[howmed.net] T waves (without dysrhythmia), have occurred frequently and hypotension and ventricular tachycardia have occurred occasionally in patients receiving IV quinidine gluconate[drugs.com] During the quinidine infusion, the patient experienced a prolonged QT interval and an episode of supraventricular tachycardia.[ncbi.nlm.nih.gov]

  • Adrenal Insufficiency

    Available data suggest that patients with PAI may be underreplaced with FC as symptoms and signs indicating chronic MC underreplacement, such as salt craving and postural dizziness[ncbi.nlm.nih.gov] If potassium is above 7.0 mmol/L and hyperkalaemic ECG changes are present (eg. peaked T waves wide QRS complex flattened P waves), treat with either of the following: give[rch.org.au] […] of the QT interval.[ncbi.nlm.nih.gov]

  • Subarachnoid Hemorrhage

    A 39-year-old Japanese man visited our hospital with a 3-day history of mild headache, shoulder stiffness, and a feeling of dizziness.[ncbi.nlm.nih.gov] Electrocardiographic findings were as follows: inverted or flattened T waves (100%); QTc prolongation 0.45 seconds (90.0%); ST segment elevation (60.0%); and ST segment depression[ncbi.nlm.nih.gov] […] the QT interval sinus bradycardia Three distinct patterns of subarachnoid hemorrhage have been described each with their own etiology and treatment/prognostic implications[radiopaedia.org]

  • Phenothiazine

    […] balance trembling or shaking dizziness lip smacking or other uncontrollable movements difficulty urinating skin rash/discoloration.[addiction.com] Common side effects include: drowsiness, dizziness, headache, low blood pressure, and blurred vision.[medicinenet.com] Side effects such as dizziness, dry mouth, sedation, blurred vision or constipation may start or get worse with the combination.[webmd.com]

  • Mesoridazine

    Mesoridazine may cause dizziness or drowsiness. If you experience dizziness or drowsiness, avoid these activities.[drugs.com] […] or inversion of T-waves; Miscellaneous — fatigue, lethargy, transient scotomata. dehydration, weight loss, tendency to sleep... ‎[books.google.de] QT interval contraindication 111975006 Coma contraindication 371632003 Granulocytopenic disorder contraindication 417672002 DOID:12987 Congenital long QT syndrome contraindication[drugcentral.org]

  • Thioridazine

    This drug may make you dizzy or drowsy. Alcohol or marijuana can make you more dizzy or drowsy.[webmd.com] As with other phenothiazines, benign repolarization changes such as prolongation of the Q-T interval, flattening of the T wave and the appearance of a U wave have been reported[rxmed.com] Abstract In December 2000, the Committee for Safety of Medicines (CSM) advised that thioridazine may prolong QT intervals risking arrhythmias.[ncbi.nlm.nih.gov]

  • Digoxin

    Abstract A 70-year-old woman with a history of atrial fibrillation, on digoxin, presented with nausea, vomiting, and dizziness two days after initiation of clarithromycin[ncbi.nlm.nih.gov] , inverted, or biphasic T waves .[lifeinthefastlane.com] Feeling dizzy Getting up or moving more slowly should help.[patient.info]

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