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  2. Tricyclic antidepressant overdose - Wikipedia

    en.wikipedia.org/wiki/Tricyclic_antidepressant...

    If sodium bicarbonate therapy fails to improve cardiac symptoms, conventional antidysrhythmic drugs or magnesium can be used to reverse any cardiac abnormalities. However, no benefit has been shown from Class 1 antiarrhythmic drugs ; it appears they worsen the sodium channel blockade, slow conduction velocity, and depress contractility and ...

  3. QRS complex - Wikipedia

    en.wikipedia.org/wiki/QRS_complex

    QRS duration: 75 to 105 ms [3] Shorter in children [4] Prolonged duration could indicate hyperkalemia [5] or intraventricular conduction delay such as bundle branch block. QRS amplitude: S amplitude in V1 + R amplitude in V5 < 3.5 millivolt (mV) [4] R+S in a precordial lead < 4.5 mV [4] R in V5 or V6 < 2.6 mV; Increased amplitude indicates ...

  4. Drug-induced QT prolongation - Wikipedia

    en.wikipedia.org/wiki/Drug-induced_QT_prolongation

    Class III antiarrhythmic drugs are potassium channel blockers that cause QT prolongation and are associated with TdP. Amiodarone. Amiodarone works in many ways. It blocks sodium, potassium, and calcium channels, as well as alpha and beta adrenergic receptors. Because of its multiple actions, amiodarone causes QT prolongation but TdP is rarely ...

  5. Hyperkalemia - Wikipedia

    en.wikipedia.org/wiki/Hyperkalemia

    Hyperkalemia is an elevated level of potassium (K +) in the blood. [1] Normal potassium levels are between 3.5 and 5.0 mmol/L (3.5 and 5.0 mEq/L) with levels above 5.5 mmol/L defined as hyperkalemia.

  6. Flecainide - Wikipedia

    en.wikipedia.org/wiki/Flecainide

    Flecainide is a medication used to prevent and treat abnormally fast heart rates. [1] This includes ventricular and supraventricular tachycardias. [1] Its use is only recommended in those with dangerous arrhythmias or when significant symptoms cannot be managed with other treatments. [1]

  7. Sodium bicarbonate - Wikipedia

    en.wikipedia.org/wiki/Sodium_bicarbonate

    Sodium bicarbonate, as "bicarbonate of soda", was a frequent source of punch lines for Groucho Marx in Marx Brothers movies. In Duck Soup , Marx plays the leader of a nation at war. In one scene, he receives a message from the battlefield that his general is reporting a gas attack, and Groucho tells his aide: "Tell him to take a teaspoonful of ...

  8. Loop diuretic - Wikipedia

    en.wikipedia.org/wiki/Loop_diuretic

    Thiazide (blockade of sodium-chloride symporter), amiloride (blockade of epithelial sodium channels) and carbonic anhydrase inhibitors (blockade of chloride-bicarbonate exchanger pendrin) has been suggested to complement the action of loop diuretics in resistance cases but limited evidence are available to support their use.

  9. Intravenous sodium bicarbonate - Wikipedia

    en.wikipedia.org/wiki/Intravenous_sodium_bicarbonate

    Intravenous sodium bicarbonate, also known as sodium hydrogen carbonate, is a medication primarily used to treat severe metabolic acidosis. [2] For this purpose it is generally only used when the pH is less than 7.1 and when the underlying cause is either diarrhea , vomiting , or the kidneys . [ 3 ]