👉 Atrioventricular (AV) block

In the heart, it means that the electrical impulse is partially or completely blocked from reaching the ventricle from the atria.

📌 Types of AV Block:

1. First Degree AV Block:
✅ A QRS complex follows every P wave.
✅ Only the PR interval is longer than normal (>0.20 seconds).
➡️ This is the mildest AV block.

2. Second Degree AV Block (Mobitz Type-I / Wenckebach):
✅ The PR interval gradually increases.
✅ Then, a QRS complex drops.
➡️ This is often less severe.

3. Second Degree AV Block (Mobitz Type-II):
✅ The PR interval remains normal or stable.
❌ Suddenly, a QRS complex disappears without warning.
⚠️ Some P waves do not reach the ventricle.
🔴 Dangerous: It can suddenly turn into Complete Heart Block (Third Degree AV Block).
💡 Requires pacemaker implantation.

4. Third Degree AV Block (Complete Heart Block):
❌ No impulses are transmitted between the Atria and Ventricle.
➡️ Both beat independently.

❓ Why is the correct answer B?

👉 Mobitz-II is a type of Second Degree AV block.
✅ The PR interval remains constant.
❌ But some QRS complexes disappear completely.
⚠️ It can be life-threatening.

👉 Conclusion:

Mobitz-II is a Second Degree AV block in which conduction stops suddenly.
🔴 It is a serious condition and often requires pacemaker therapy.

👉 ABC Analysis

ABC Analysis is an inventory management technique, the basis of which is Annual Consumption Value.

Formula: Annual Consumption Value = Annual Demand × Unit Cost

🔹 Classification:

A Items:
💰 High value, low quantity items.
📊 Contributes about 70-80% of the total inventory cost.
🔴 Requires strict monitoring and control.

B Items:
💵 Medium value and medium quantity items.
📊 About 15-20% of the total inventory cost.
🟡 Requires a moderate level of control.

C Items:
💲 Low value, high quantity items.
📊 Only 5-10% of the total inventory cost.
🟢 Managed with simple control and bulk purchases.

❓ Why is the correct answer B?

👉 The basis of ABC analysis is Annual Consumption Value, not Unit Cost, Criticality, or Procurement Difficulty.
✅ It helps decide which items should get the most attention and control for cost-effective inventory management.

👉 Conclusion:

The foundation of ABC Analysis is Annual Consumption Value.
📌 This classification helps organizations identify priority items to ensure efficient and economical inventory management.

Rational (Explanation):
Systolic blood pressure is the pressure produced in the arteries when the heart contracts, while diastolic blood pressure is the pressure produced when the heart relaxes. The difference between the two is called pulse pressure.

👉 Normal pulse pressure: around 30–40 mmHg.

👉 If pulse pressure is very high: it may be a sign of conditions such as atherosclerosis or hypertension.

👉 If pulse pressure is very low: it may be a sign of reduced pumping ability of the heart or shock.

Rationale (Explanation):
Road to Health Card is a tool designed to track the health and development of children.

👉 Main purpose: measure the growth and nutrition status of children.

👉 This allows health workers to see if the child is growing properly or not.

👉 Apart from this, the card also helps children in vaccination and other preventive care.

💡 In simple words: This card is used to monitor the health of children and keep their development on the right track.