What should I do if I faint at the sight of blood?

Blood is the most important substance in the human body. People cannot survive without blood because blood is the main transporter of nutrients and oxygen circulation throughout the body. The reason why blood appears red is because it contains a large amount of iron, which produces red color when combined with oxygen ions. Some people are afraid of red and even feel dizzy when seeing blood. Let’s take a look at what to do if you experience symptoms of blood phobia.

Hemophobia is also different from motion sickness and seasickness. The former is similar to acrophobia and is a psychological problem; the latter is a physiological problem of the inner ear balance organ. Although the cause of hemophobia has not yet been clarified, this mental disorder is definitely not the type of mental illness commonly known as "neurosis". Except for being unable to see blood, people who faint at the sight of blood are no different from normal people.

1. How to rescue someone who is suffering from blood phobia

Hemophobia itself is a type of vasovagal syncope, such as syncope caused by pain, tension, fear, fright and various traumas. Because these factors are common causes of stress. Generally, fainting due to blood is just a temporary loss of consciousness. The person is in a state of light coma, with physiological reflexes still present and vital signs stable, so there is no need to panic.

The patient should be laid flat and moved to a safe place with a suitable temperature. The buttons on the neck should be unbuttoned. If there are dentures, they can be removed. Foreign objects or sputum in the mouth should be cleared promptly. If conditions permit, low-flow oxygen should be administered. The patient should be patted on the shoulder and gently called. The patient will usually wake up naturally within a few minutes. It is recommended not to feed water to the patient to prevent choking and causing unnecessary trouble. Generally, the patient can recover after resting for 10 to 15 minutes. Emergency treatment with medication is required if necessary.

2. Commonly used drug rescue methods

(1) Keep the airway open and give oxygen;

(2) In an emergency, establish intravenous access and use 5% glucose injection;

(3) Naloxone is diluted and injected intravenously;

(4) Rapid blood sugar measurement, BS < 4mmol/L, intravenous injection of 50% glucose;

(5) Patients with high intracranial pressure should be given a rapid intravenous drip of 20% mannitol and an intravenous push of the diuretic furosemide;

(6) Closely observe vital signs and ECG monitoring; patients who are unconscious need to be hospitalized for observation;

(7) Symptomatic treatment: For patients with low blood pressure and rapid, shallow and unstable breathing, add dopamine; for patients with respiratory failure, give niclosamide and lobeline; for patients with tachycardia, give lidocaine intravenously; if there is convulsion, give calcium gluconate intravenously, etc.