Questions tagged [injections]

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Where, in the human skin, would lidocaine cream stop but lidocaine injections won't?

In some medical procedures lidocaine is injected and in some others it is topically administered as a cream. Histologically speaking, where, in the human skin, would lidocaine cream stop but lidocaine ...
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65 views

Effects of intravenous injection of sterilized hypotonic water

I'm curious about the effects of injecting sterilized water intravenously. I suppose that a high enough dose will cause red blood cells to burst because of the change in osmolarity (cytolysis). A ...
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5 votes
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Why *exactly* are mRNA covid vaccines delivered intramuscularly?

I would like to understand what exact processes make intramuscular injection of particularly mRNA covid vaccines the best delivery option. I've asked doctors and googled, but I get contradictory ...
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1 answer
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What are risks associated with injection made by a non-sterile needle?

On a regular vaccination, I've been handled by an unprofessional staff, who ( while preparing the injection needle) touched her hands 2 times to the injection needle (staff wore the gloves, but they ...
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3 votes
2 answers
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Is there evidence that vaccine-related blood clots could be due to injection technique?

Recently, Danish health authorities including Denmark's SSI issued new guidelines for intramascular vaccination to be done with aspiration, in case some of the vaccine-induced blood clot cases are due ...
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Alternative to Actemra 400 mg

There is a little bit of Panic for Actemra 400 mg Injection in India these days but I see that Actemra 162 mg is available. If in an unfortunate situation one cannot find Actemra 400mg dose can ...
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1 vote
0 answers
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Why should you not wash injection site after a vaccine (layman question)?

Non-medical person here, but my question, I think, is on topic for this site. Every time after I've gotten a vaccine injection I've always been given a variation of the same advice - "Don't wash/wet ...
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What are the long term effects of Lidocain injections to treat a tendinopathy?

Lidocain injections are often regarded as a potential replacement for corticosteroid injections, as the latter have been demonstrated to weaken tendons in the long-term (> 6 months). What are the ...
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50 views

Are there a plastic surgery conditions of a "double chin" or "triple chin"?

Executing Is there a plastic surgery condition of a "double" or "triple" chin? as a search query in three search engines (Google, Bing, DuckDuckGo) and looking at images brought me almost no results ...
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1 vote
1 answer
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What does administering a vaccine intradeltoid mean?

In some places I have seen that while administering a vaccine it was written that it should be administered "intradeltoid". Does this mean intramuscular at the deltoid place or some different way of ...
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2 votes
1 answer
207 views

What is the blood level evolution of a intramuscular injection?

Suppose an intramuscular injection of a substance is done on a patient. What would be the form of the graph of the blood concentration of this substance over time?
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2 votes
1 answer
228 views

How many valves per distance are common in veins?

Veins have valves to prevent backflow of blood. I am looking for a value the indicates on average how far apart those valves would be. There are valves in most veins to prevent backflow. source ...
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3 votes
1 answer
117 views

Use of injection containing both insulin and glucose

I'm not a medicine person (and not a chemist), and the question is mostly theoretical. I've been thinking about how and why glucose and insulin are used and hwo they work, and I have several ...
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1 answer
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breathing in versus injecting mercury (the gas)

Breathing in mercury is extremely bad and can have consequences for your whole remaining life. It's the property of mercury to evaporate at room temperature, which is why it can get harmful so ...
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2 votes
1 answer
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Does halving the quantity of an oil-based time-release intramuscular injection medicine also require halving the time between dosing? [closed]

In order to half the administered dosage of an oil-based time-release intramuscular injection, does that also require halving the time between dosing? For example, if the initial dosing was: 1ml = ...
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5 votes
1 answer
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Where are less painful self-injection sites for sub-cutaneous injections? [closed]

If a sub-cutaneous injection is to be given, where is the least painful site? Injection into the thigh muscle is suggested for some unknown reason, and the instructions advise simply to avoid muscle ...
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1 vote
1 answer
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Long term side effects of Xolair

I get 300mg of Xolair injected twice a month (every 2 weeks). I was wondering if there are any studies showing long term side effects of this medicine that are not published by the manufacturers of ...
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1 vote
0 answers
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Platelet Rich Plasma Injections

After receiving 6 PRP injections in both knees, I have now been diagnosed with Myleofibrosis! Is there any evidence of the associated link?
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5 votes
1 answer
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Passing out after injections [closed]

Last October I had an injection which was need for my trip to Costa Rica, a few minutes later I passed out and split my head open due to landing on concrete. On Monday I'm having a typhoid injection ...
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2 votes
1 answer
291 views

Are there any significant differences between Triceba and Toujeo?

I'm currently taking a long-acting insulin called Triceba. But I recently changed my health insurance, and the new insurance doesn't cover Triceba, it only covers another long-acting insulin called ...
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0 votes
1 answer
234 views

Which is the best injection after dog bite in india [closed]

Which is the best injection after dog bite in india In India, is Rabipur the preferred injection?
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2 votes
0 answers
51 views

When getting injections after a dog bite, what to expect?

When a street dog bites a human, is it always necessary to take 5 doses [day 0, 3, 7, 14, 28] of injections? For a small bite, could one injection be enough? If a person was bitten again, would they ...
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2 votes
0 answers
36 views

Rabies vaccination, two 3rds of the required course

As some of you may be aware, the Rabies vaccination requires a set of 3 doses over a period of 1 month. I have "maybe" had 2 of those 3 jabs. The nurse can see on my records that 2 doses have been ...
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1 vote
0 answers
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calcific tendonitis in the shoulder - lavage treatment effectiveness

I have heard of the needle lavage treatment for calcific tendonitis, where they inject water solution near the calcification area in the shoulder and drawing it out several times to dissolve the ...
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2 votes
0 answers
511 views

Permanent saline-injection breast augmentation?

One of my close friends recently underwent minor breast augmentation (up like a half size). She was telling me about the procedure and explained that that the doctor gave her an injection of something ...
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3 votes
1 answer
20 views

Existence of injection administering certification?

Is there a legal training, certification, or license that allows one to legally inject substances/medications into others? Is it illegal to inject others or aid in injecting others without such ...
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1 vote
1 answer
52 views

Are botox injections approved by the FDA to treat chronic migrraines?

Obviously, botox injections are used to treat wrinkles. I've also heard that it can treat a panoply of other things, including overactive-bladders and migraine prevention! Are botox injections FDA ...
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3 votes
0 answers
50 views

Why does a tense arm worsen flu shot soreness?

Multiple nurses have told me that the key to a pain-free flu shot is to completely relax your arm. How would you explain what's going on at the cellular level when a tense muscle receives a shot and ...
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5 votes
1 answer
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Why aren't there any competitors in the market for epi-pens?

We've seen recently that the price of epi-pens has been jacked up six-fold due to one company having a monopoly on the market. Medically this is quite important as anaphylaxis can kill in seconds. ...
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2 votes
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What are the long-term side effects of intramuscular oil injection?

Intramuscular injections of oils such as synthol is sometimes used in amateur and professional body-builders to enlarge their muscle volume. What are the long-term side effects of intramuscular oil ...
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Is there any downside of using ultrasound guidance when performing injections to treat a tendinopathy?

The result of (1) published last week showed that when performing injections for tennis elbow, only 3 out of 10 were correctly localized (!). Is there any downside of using ultrasound guidance when ...
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38 views

Large scale studies on the accuracy of injections for tennis elbow: do they confirm the injection accuracy is only ~30%?

​I am (negatively)​ impressed by the result of (1) published last week: they quantified how often injections for tennis elbow are correctly localized. Only 3 out of 10 were! ​Result details:​ ​Of the ...
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4 votes
1 answer
879 views

How to combat muscular atrophy while in coma?

Muscles start to deteriorate without use, so without the person consciously moving a body part or flexing, can muscle tissue degeneration be stopped or at least decelerated by administering something, ...
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1 vote
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What could explain that platelet-rich plasma (PRP) injections are not more efficient than Autologous Blood injections to treat a tendinopathy?

A number of RCT studies have shown that platelet-rich plasma (PRP) injections are not more efficient than autologous blood injections to treat a tendinopathy. Example: Krogh, T., E. M. Bartels, T. ...
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2 votes
1 answer
1k views

Markings on a 3ml syringe

I have some 3ml syringes with 23Gx1" needles. But there is also a second scale on the syringe that is marked as "M" and 40M is right at around the 2.5 ml measure. What is this M scale mean? I thought ...
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To what extent does the chronicity of a tendinopathy impact the outcome of platelet-rich plasma (PRP) injections?

I wonder to what extent the chronicity of a tendinopathy impacts the outcome of platelet-rich plasma (PRP) injections? (outcome = degree to which it helps treating the tendinopathy) Several ...
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7 votes
1 answer
2k views

Why do medical professionals tap syringes before injecting somebody?

Why do medical professionals tap syringes before injecting somebody? What happens if they don't?
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3 votes
0 answers
256 views

What are the downsides of autologous tenocyte implantations?

I have read a couple of research articles that seem to be quite laudative toward autologous tenocyte implantation (ATI): (1) presents a successful recovery for partial-thickness rotator cuff tear and ...
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1 vote
0 answers
32 views

Has the injection of collagen-producing skin-derived tenocyte-like cells been shown to result in deleterious phenotype instability?

Wang, Allan W., et al. "Autologous tenocyte implantation, a novel treatment for partial-thickness rotator cuff tear and tendinopathy in an elite athlete." BMJ case reports 2013 (2013): ...
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0 votes
1 answer
158 views

How to fight beard loss without cortisol injections? [closed]

I guess losing beard area as a little blocks is a really bad situation. I asked this issue to a dermatology doctor, she said "Run away from stress". Running away from stress is definitely impossible ...
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9 votes
1 answer
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What are the long term health risks from repeated cortisone injections?

I broke my elbow (radial head fracture, approximately 13 months ago). A year after the accident it still hurt during some activities (such as riding my bicycle), so I returned to the orthopedist. The ...
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3 votes
2 answers
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Why are cortisone injections deleterious for tendons?

It is often recommended not get over around 2 cortisone injections for a tendinitis. Why are cortisone injections deleterious for tendons? I have crossposted the question at: http://qr.ae/TbMNEb
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