1. Ventricular bigeminy
2. Ventricular tachycardia
3. Atrial flutter
4. Atrial tachycardia with variable block
Select the correct answer using the code given below:
Digitalis Intoxication ECG Findings Explained
Digitalis intoxication can cause a variety of electrocardiographic (ECG) abnormalities due to its effects on cardiac ion channels and automaticity. Identifying these specific findings is crucial for diagnosis.
Analyzing ECG Manifestations of Digitalis Toxicity
Let's evaluate the listed ECG findings in the context of digitalis intoxication:
- 1. Ventricular bigeminy: This rhythm, characterized by a premature ventricular contraction (PVC) after each normal beat, is a common and significant sign of digitalis toxicity.
- 2. Ventricular tachycardia: Digitalis toxicity can lead to various forms of ventricular tachycardia, including sustained and non-sustained rhythms, indicating severe cardiac electrical instability.
- 3. Atrial flutter: While digitalis can influence atrial rhythms, atrial flutter is not considered a primary or specific indicator of digitalis intoxication. Digitalis is often used to control the ventricular rate in atrial flutter.
- 4. Atrial tachycardia with variable block: Increased atrial automaticity leading to atrial tachycardia, combined with variable block at the AV node (often due to digitalis's effect on AV conduction), is a recognized manifestation of digitalis toxicity.
Identifying the Correct Combination
Based on the analysis, the ECG findings that are characteristic manifestations of digitalis intoxication are:
- Ventricular bigeminy (1)
- Ventricular tachycardia (2)
- Atrial tachycardia with variable block (4)
Therefore, the correct combination is 1, 2, and 4.
Important Questions from Heart Failure
High output cardiac failure is caused by which of the following diseases ?
1. Beri-beri
2. Severe anaemia
3. Thyrotoxicosis
Select the correct answer using the code given below:
- Kussmaul's sign is present in all of the following conditions, EXCEPT:
- A 35-year-old labourer worker consulted a local medical practitioner for recurrent attack of chest pain. His elder brother had similar complaint and died at the age of 40 years. The labourer worker was advised to take sublingual nitroglycerin at the time of chest pain. But after taking nitroglycerin, the chest pain increased in intensity. Which one of the following is most likely ?
- The treatment of choice for a 32 year old male patient of severe mitral stenosis (Rheumatic) with thickened and calcified valves on echocardiography is:
- A 55-year old man, non smoker presents with sudden onset of shortness of breath. On examination, pulse rate is 110/minute and B.P. 180/110 mm Hg. Patient is restless and anxious. Examination of chest shows bilateral rhonchi and crepitation. $S_3$ gallop is heard on auscultation of precordium. There is no history of chronic bronchitis. The most likely diagnosis is:
