Light coma

Introduction Light coma: Conscious activity and mental activity disappear, but strong pain stimuli (such as pressing the upper arm) can show expression or motor response, can not be awakened, pupils reflect light normal, deep and shallow reflections exist. The conscious state of the coma patient is lost. The clinical manifestation is that the patient's wakefulness sleep cycle disappears and is in a continuous "deep sleep" and cannot be awakened. Many psychological activities such as patient perception, attention, thinking, emotion, orientation, judgment, and memory are lost. No understanding of themselves and the external environment, no response to external stimuli.

Cause

1. Coma caused by central nervous system diseases: including cerebrovascular diseases (such as cerebral hemorrhage, cerebral infarction, etc.), brain trauma, brain tumors, encephalitis, toxic encephalopathy, etc.

2. Coma caused by systemic diseases: including alcoholism, diabetic acidosis, pesticide poisoning, uremia, hepatic coma, carbon monoxide poisoning, etc.

an examination

Related inspection

Brain CT examination blood routine

For comatose patients, due to uncooperative examinations, the focus should be checked:

1, body temperature pulse, respiratory rate, and deep breathing odor and respiratory secretions.

2, blood pressure.

3, the skin with or without blemishes, bleeding and sweating.

4, the degree of coma.

5. Whether the pupil size is equal on both sides and reacts to light.

6, eye movements and eye and brain reflexes.

7, the fundus is ignored, edema and bleeding of the nipple.

Differential diagnosis

(1) Light coma: Most of the consciousness is lost, and there is no response to surrounding things and sound and light stimuli, but it responds to strong stimuli. Patients have various reflexes and incontinence.

(2) Deep coma: All consciousness is lost, no response to various external stimuli, various reflexes disappear, and the whole body muscles are relaxed.

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