Why does respiratory alkalosis cause numbness and convulsions?

Apr 04, 2023 Source: Cainiu Health

Dr. Yang Shuwen

Introduction

In general, convulsions caused by respiratory alkalosis are closely related to hypocalcemia. Alkalosis itself can increase neuromuscular excitability and lead to neurological dysfunction. The convulsions resulting from respiratory alkalosis manifest as carpopedal spasms, which are due to a decrease in ionized calcium levels in the blood. Normally, plasma ionized calcium helps suppress neuromuscular excitability.

In general, tetany caused by respiratory alkalosis is closely related to hypocalcemia. Alkalosis itself can increase neuromuscular excitability and lead to neurological dysfunction. The specific analysis is as follows:

The convulsions resulting from respiratory alkalosis typically manifest as carpopedal spasms, which are caused by a reduction in ionized calcium levels in the blood. Normally, plasma ionized calcium helps suppress neuromuscular excitability. During alkalosis, decreased levels of ionized calcium lead to increased neuromuscular excitability, resulting in hyperactive nerves and carpopedal spasms. After poisoning, symptoms such as dry mouth, difficulty urinating, ataxia, or even coma may occur. Prompt detoxification treatment is essential, including gastric lavage with potassium permanganate solution, catharsis, and fluid replacement. Respiratory alkalosis may also cause numbness, primarily due to reduced blood calcium ion levels. Following onset, patients may experience limb stiffness, impaired mobility, or convulsions.

Additionally, patients should seek timely medical treatment at a正规 hospital after developing respiratory alkalosis to prevent serious complications.

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