Twitching of the facial versus in response to typing over the area of the facial nerve mcq given below:
Q. Twitching of the facial versus in response to typing over the area of the facial nerve(a) Chvostek’s sign / |
| Do you Agree with Answer comment below |
😊 Chvostek’s Sign
✅ Answer: (a) Chvostek’s Sign
📖 What is Chvostek’s Sign?
Chvostek’s Sign is a clinical sign of hypocalcemia (low blood calcium).
👉 It is tested by gently tapping over the facial nerve, just in front of the ear.
A positive Chvostek’s sign causes involuntary twitching of the facial muscles on the same side.
📖 What is Hypocalcemia?
Hypo = Low
Calc = Calcium
emia = In the blood
👉 Hypocalcemia means a low level of calcium in the blood, leading to increased neuromuscular excitability.
Common signs include:
- Facial muscle twitching (Chvostek’s sign)
- Carpopedal spasm (Trousseau’s sign)
- Muscle cramps
- Tingling around the mouth and fingertips
❌ Why Other Options Are Wrong?
(b) Trousseau’s Sign
❌ Carpopedal spasm produced by inflating a blood pressure cuff above systolic pressure for about 3 minutes.
(c) Tenderness at McBurney’s Point
❌ A sign of acute appendicitis, located in the right lower abdomen.
(d) Allen’s Test
❌ Assesses the adequacy of blood flow through the radial and ulnar arteries before procedures such as radial artery cannulation.
📝 Chvostek’s vs Trousseau’s Sign
| Sign | How It Is Elicited | Finding |
|---|---|---|
| Chvostek’s Sign | Tap the facial nerve | Facial muscle twitching |
| Trousseau’s Sign | Inflate BP cuff above systolic pressure | Carpopedal spasm |
😊 Cheek Tap → Chvostek
✋ BP Cuff → Trousseau
Both are classic signs of Hypocalcemia.
📌 Exam Tip: Remember the pair: Chvostek’s sign = Facial twitching and Trousseau’s sign = Carpopedal spasm. Both indicate increased neuromuscular excitability due to hypocalcemia.
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