Hey there,
If blood travels through veins, and if we need to get a blood test, they put the needle through the vein and take blood.
If medicine is transported via those veins, how do injections work? Like you’re putting the needle through the muscle, not the visible vein, so how does that liquid gets transported through the body?
I hope I’m clear. Sorry for my English.
In: 20
Different injection types are required depending on what’s being injected and why. Injections into the muscle (Intramuscular aka IM) are generally a way of *slowly* introducing something to the body. Immunizations are a classic example of IM injections for just that reason. Muscles still have blood vessels, and lymphatic drainage, so over time whatever is injected into them will be disseminated through the body.
By contrast if you want to rapidly delivery a drug to someone’s circulatory system, maybe a sedative or something simple like glucose to reverse a diabetic attack, then you want to access a vein.
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