Question:medium
Aconite poisoning causes all of the following except:
Aconite poisoning causes all of the following except:
Show Hint
Aconitine keeps sodium channels open, so the heart slows and pressure drops, not rises.
Updated On: Jun 24, 2026
- Hypersalivation
- Tingling and numbness
- Increased blood pressure
- Chest pain
Show Solution
The Correct Option is C
Solution and Explanation
Aconite is a fast-acting cardiotoxic plant poison whose toxin, aconitine, jams the sodium channels of nerve and heart muscle in the open state. Because the channels stay open, nerves fire abnormally and the heart loses its normal rhythm.
Look at each choice. Hypersalivation happens early because the poison irritates the mouth and stimulates secretions. Tingling and numbness around the lips, tongue and limbs are the hallmark sensory complaint and appear within minutes. Chest pain occurs as the heart muscle becomes ischaemic and arrhythmic. All three are genuine signs.
Blood pressure in aconite poisoning typically falls. The patient becomes bradycardic, hypotensive and may collapse from a cardiac arrhythmia such as ventricular tachycardia. A rise in blood pressure does not fit the picture, so that is the odd one out.
\[\boxed{\text{Increased blood pressure}}\]
Look at each choice. Hypersalivation happens early because the poison irritates the mouth and stimulates secretions. Tingling and numbness around the lips, tongue and limbs are the hallmark sensory complaint and appear within minutes. Chest pain occurs as the heart muscle becomes ischaemic and arrhythmic. All three are genuine signs.
Blood pressure in aconite poisoning typically falls. The patient becomes bradycardic, hypotensive and may collapse from a cardiac arrhythmia such as ventricular tachycardia. A rise in blood pressure does not fit the picture, so that is the odd one out.
\[\boxed{\text{Increased blood pressure}}\]
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