Why the study?
What are the plasma digoxin levels in digitalized patients compared to those with digitalis toxicity?
Population
Digitalized patients and patients with clinical and ECG evidence of digitalis intoxication
Design
Cross-sectional
Key result
Patients with clinical digitalis intoxication had plasma digoxin levels greater than 2.0 ng/ml, compared to 0.5 to 2.0 ng/ml in non-toxic digitalized patients.
Authors
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A rapid radioimmunoassay can accurately distinguish therapeutic from toxic plasma digoxin levels, establishing >2.0 ng/ml as a threshold for toxicity.
Observational
What are the plasma digoxin levels in digitalized patients compared to those with digitalis toxicity?
A rapid radioimmunoassay can accurately distinguish therapeutic from toxic plasma digoxin levels, establishing >2.0 ng/ml as a threshold for toxicity.
Johnston et al. (1972) conducted an observational in Digitalized patients and patients with digitalis intoxication. Digitalis intoxication vs. Digitalized patients without intoxication was evaluated on Plasma digoxin levels. Patients with clinical digitalis intoxication had plasma digoxin levels greater than 2.0 ng/ml, compared to 0.5 to 2.0 ng/ml in non-toxic digitalized patients.