Hypokalemia may induce arrhythmia or digitalis poisoning, so serum potassium should be monitored

When taking potassium-depleting diuretics, add more potassium-rich foods, and follow your doctor's advice to supplement potassium salts when necessary. Oral potassium supplementation should be taken after meals. to relieve gastrointestinal discomfort. When peripheral intravenous potassium supplementation is performed, the KCl content per 500ml of liquid should not exceed 1.5g. It is advisable to apply diuretics in the morning or during the day to avoid frequent urination at night and affecting the patient's rest.

① The elderly, myocardial ischemia and hypoxia, severe heart failure, hypokalemia and hypomagnesemia, decreased renal function, etc. are more sensitive to digitalis. When using it, the patient's reaction after taking the drug should be closely observed. ②Combined use with quinidine, amiodarone, verapamil, aspirin and other drugs can increase the chance of poisoning. Before administration, you should ask and evaluate whether you have used the above drugs. ③Monitor serum digoxin concentration if necessary. ④Administer strictly on time and as directed by the doctor. When using lanatoside C or lanatoside K, be sure to dilute it and inject slowly (10 to 15 minutes) intravenously, and monitor changes in heart rate, rhythm and electrocardiogram at the same time.

Arrhythmias, the most common of which are ventricular premature contractions, mostly in bigeminy or triplet rhythm, others include premature atrial contractions, atrial fibrillation, atrioventricular block, etc. Gastrointestinal reactions such as loss of appetite, nausea, vomiting and neurological symptoms such as headache, fatigue, blurred vision, yellow vision, green vision

① Stop using digitalis immediately. ②Those with hypokalemia can take oral or intravenous potassium supplements and stop using potassium-depleting diuretics. ③Correct arrhythmias; lidocaine or phenytoin can be used for tachyarrhythmias, and electrical cardioversion is generally prohibited because it can easily cause ventricular fibrillation; Patients with conduction block and bradyarrhythmias can be given intravenous atropine or a temporary pacemaker can be placed

sodium nitroprusside

Nitroglycerin

digitalis preparations

Intravenous injection of 3 to 5 mg of morphine can sedate the patient, reduce agitation, dilate small blood vessels and reduce the load on the heart. If necessary, repeat application once every 15 minutes, a total of 2 to 3 times. Elderly patients should reduce the dose or switch to intramuscular injection.

Adverse reactions: Observe the patient for respiratory depression, bradycardia, drop in blood pressure, etc.

Contraindications: Respiratory failure, coma, severe shock

Furosemide 20 to 40 mg is administered intravenously and can be repeated once after 4 hours. Can quickly diuretic and effectively reduce cardiac preload

sodium nitroprusside

Nitroglycerin: dilates small veins and reduces blood return to the heart.

digitalis preparations

Suitable for patients with bronchospasm to relieve bronchospasm