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53 Possible Causes for Carpopedal Spasm, Potassium Decreased, Prolonged QT Interval

  • Hypomagnesemia

    A 39-year-old woman was presented to the emergency department complaining of severe watery diarrhea and carpopedal spasm after ingesting a handful of magnesium hydroxide tablets[ncbi.nlm.nih.gov] A lack of magnesium inhibits reuptake of potassium, causing a decrease in intracellular potassium. This decrease in intracellular potassium results in a tachycardia.[en.wikipedia.org] The others had electrocardiogram abnormalities (prolonged QT interval, ST depression, and U waves).[ncbi.nlm.nih.gov]

  • Hypokalemia

    Case presentation We report a case of a 4-year-old girl presenting carpopedal spasm and rhabdomyolysis due to severe hypokalemia associated to hypophosphatemia and hypovolemia[ncbi.nlm.nih.gov] New data make clear that feedforward homeostatic responses activate when decreased potassium intake is sensed, even when plasma potassium concentration is still within the[ncbi.nlm.nih.gov] QT interval may be seen, which is actually the QU interval with an absent T wave. 1 Severe hypokalemia can also cause a variety of tachyarrhythmias, including ventricular[doi.org]

  • Bartter's Disease

    Other symptoms Other symptoms, which appear during late childhood, include fatigue, muscle weakness, cramps, and recurrent carpopedal spasms.  Developmental delay and minimal[de.slideshare.net] Five weeks after birth, his sodium chloride loss turned into renal potassium loss, along with a marked decrease in urine output.[link.springer.com] Medications known to prolong the QT interval should be avoided. E.[clinicaladvisor.com]

  • Hypocalcemia

    Manifestations include hyperactive deep tendon reflexes, chvostek's sign, muscle and abdominal cramps, and carpopedal spasm.[icd9data.com] […] to hypoxia and/or acidosis Cell destruction - crushing injuries, burns and hemolysis Inadequate Potassium Excretion - from decreased aldosterone related to Adrenalectomy[web.archive.org] Hypocalcemia is a potentially fatal electrolyte imbalance with complications that include seizures, tetany, prolonged QT interval, cardiomyopathy, and congestive heart failure[ncbi.nlm.nih.gov]

  • Malabsorption Syndrome

    spasm Ca, Mg Edema Protein Glossitis Vitamins B 2 and B 12, folate, niacin, iron Night blindness Vitamin A Pain in limbs, bones, pathologic fractures K, Mg, Ca, vitamin D[merckmanuals.com] , and potassium levels muscle wasting and atrophy due to decreased protein absorption and metabolism perianal skin burning, itching, or soreness due to frequent loose stools[encyclopedia.com] For instance, you may be advised to avoid foods high in fat to decrease diarrhea, and increase foods high in potassium to help balance your electrolytes.[healthline.com]

  • Acute Hyperventilation

    spasm.[emedicine.medscape.com] This leads to increased plasma protein binding of the serum potassium and a decrease of the physiologically active ionized calcium.[flexikon.doccheck.com] Abstract The effects of increasing respiratory rates on arterial pH, PaCO2, HCO3, and potassium (K) were measured in normal anesthetized dogs.[ncbi.nlm.nih.gov]

  • Hyperventilation

    In extreme cases it may cause carpopedal spasms, a flapping and contraction of the hands and feet.Factors that may induce or sustain hyperventilation include: physiological[en.wikipedia.org] This leads to increased plasma protein binding of the serum potassium and a decrease of the physiologically active ionized calcium.[flexikon.doccheck.com] ECG is done to detect cardiac ischemia, although hyperventilation syndrome itself can cause ST-segment depressions, T-wave inversions, and prolonged QT intervals.[msdmanuals.com]

  • Distal Renal Tubular Acidosis

    spasm Failure to thrive, developmental delay Dysmorphic facies, strabismus, and sensorineural deafness Symptoms of renal colic may occur during as a result of calcium stones[amboss.com] In five patients, impaired potassium excretion was associated with decreased ammonium excretion, a urinary pH below 5.5 (5.18 0.07, mean S.E.M.), and aldosterone deficiency[nejm.org] Electrocardiogram showed rate 140/min, electrical alternans, multifocal ventricular ectopics, ventricular reentrant beats, ventricular couplets, and prolonged qT interval[ijccm.org]

  • Metabolic Alkalosis

    spasm (Trousseau sign) depressed respirations (b/c of compensation trying to hold CO2) paralytic ileus (gut shuts down to hold HCO3) ABGs (increased pH and HCO3) decreased[quizlet.com] Serum chloride: Decreased, less than 98 mEq/L, disproportionately to serum sodium decreases (if alkalosis is hypochloremia). Serum potassium: Decreased.[nurseslabs.com] Hypomagnesaemia is seen in Gitelman's syndrome. 12-lead ECG - half of Gitelman's syndrome patients have prolonged QT interval.[patient.info]

  • Electrolyte Imbalance

    spasm (Trousseau's sign) Masseter spasm (Chvostek's sign) Tetany / muscle spasms Weakness Cardiovascular ECG changes Dysrhythmias responsiveness to: digitalis (3-adrenergic[medbc.com] A seriously abnormal increase in potassium ( hyperkalemia ) or decrease in potassium ( hypokalemia ) can profoundly affect the nervous system and increases the chance of irregular[medicinenet.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]

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