Question
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:
The correct answer is
1, 2 and 3
Understanding High Output Cardiac Failure Causes
High output cardiac failure occurs when the heart pumps an excessive amount of blood (high cardiac output), yet still cannot meet the body's metabolic demands, leading to heart failure symptoms.
Diseases Causing High Output Cardiac Failure
Several conditions can lead to high output cardiac failure. Let's examine the listed diseases:
- Beri-beri: This condition results from severe thiamine (Vitamin B1) deficiency. It causes widespread peripheral vasodilation, increasing the volume of blood the heart needs to pump. This chronic overwork can lead to high output cardiac failure.
- Severe Anaemia: In severe anaemia, the blood's oxygen-carrying capacity is significantly reduced. The body compensates by increasing heart rate and cardiac output to try and deliver sufficient oxygen to tissues. This sustained high demand can overwhelm the heart, causing high output failure.
- Thyrotoxicosis: This is a condition of excess thyroid hormones. Thyroid hormones increase the body's metabolic rate and heart rate, directly boosting cardiac output. Prolonged thyrotoxicosis can lead to heart muscle changes and eventually high output cardiac failure.
Conclusion on Causes
All three conditions—Beri-beri, severe anaemia, and thyrotoxicosis—are well-established causes of high output cardiac failure because they increase the heart's workload through mechanisms like vasodilation and increased metabolic demand.
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Important Questions from Heart Failure
- Austin Flint Murmur occurs in:
- The therapeutic level of Digoxin in blood is:
- Which of the following statements are true about management of acute pulmonary oedema?
1. Put the patient in relaxed, supine position
2. Give high flow, high concentration oxygen
3. Administer Furosemide intravenously
4. No role of Nitrates
Select the correct answer using the code given below: - A 50-year gentleman with Type-2 Diabetes mellitus for 5 years presents in medical emergency with sudden onset of dyspnoea at rest, orthopnoea, and prostration. On examination, pulse is rapid and very weak in volume. His blood pressure is 100/70 mmHg.
There are diffuse crepitations at lung bases. What is the most likely diagnosis of his conditions? - Kussmaul's sign is present in all of the following conditions, EXCEPT:
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