All Questions
7,574
questions
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Does cosmetic surgeons have an equipment that can capture images with normal light and X-rays?
Hope the title isn't too confusing. I have a friend who was thinking of getting extensive orthodontic work and the orthodontist said she might need jaw surgery as well if she was going through with it ...
0
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0
answers
3
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My mother's report of hysteroscopy states that [closed]
Macroscopic description:
Recieved 2 grey-white to grey- brown pieces of tissues , larger measuring 0.50.40.3 cm and smaller measuring 0.50.30.2 cm--2 bits , all processed. What is the meaning of this ...
-2
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0
answers
15
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Is the abortion video at abortionprocedures.com medically accurate? [closed]
abortionprocedures.com (Content Warning: graphic depiction of abortion) shows a video that (supposedly) depicts the procedure of a D&E abortion. Is the video medically accurate?
- 97
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29
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What's in diary products that inhibits the better absorption of fat-soluble vitamins?
I have found many articles including CDCs(Centers for Disease Control) describe that consuming iron and calcium in same time is not good as calcium can inhibit iron absorption!
Reference1 : https://...
2
votes
1
answer
307
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Maximum time after fertilization, after which pregnancy test no longer works
I am wondering if there is a maximum time after fertilization, after which a pregnancy test no longer works.
On the internet, I can find lots of questions and answers around how early after ...
0
votes
1
answer
27
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Negative COVID test day of event, positive next morning. What is the risk of transmission?
Imagine someone attends a relatively large social gathering during the day and evening. That morning they had a negative COVID test. There was substantial close contact, such as hugging.
The next day, ...
- 331
1
vote
2
answers
252
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Are nutrition values always additive?
(Edited to clarify question, I am a math professor not a biologist so I appreciate help clarifying the language to match the knowledge base present here.)
As I understanding nutrition labels, if a ...
- 111
0
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0
answers
18
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Protein is 4 kilocalories per gram. Does this value account for the thermic effect of food? [closed]
I have read that protein is actually 5 kcal/gram, and with the thermic effect of food, it becomes 4 kcal/gram.
But I have also read that protein is 4 kcal/gram, and with the thermic effect of food, it ...
- 101
1
vote
1
answer
34
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Is generic name a synonym for active ingredient?
What is the difference between active ingredient and generic name? Is generic name always equal to the active ingredients or are these sometimes different?
For example, Benadryl has a generic name, ...
- 111
5
votes
1
answer
52
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How does colloid pressure help in maintaining fluid inside blood vessels?
I learned in my physiology course that hydrostatic pressure is the pressure that fluids put on the wall of blood vessels and therefore, the fluid tends to get out of the blood vessel and that makes ...
- 51
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10
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Can I ask medical questions about the courses I study here? [migrated]
I'm new to this community!
I was wondering if I can ask questions about the doubts I have in the courses I study, I'm 1st year MD student and I'm not sure if my questions are suitable for this ...
- 51
1
vote
0
answers
39
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False positives of PCR test on symptomatic individuals
On this website, I see that less than 2% of people who don’t have Covid-19 test positive with a PCR test.
What happens to this percentage when we only consider symptomatic people?
So my question is: ...
- 203
0
votes
0
answers
12
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Popping sound in neck is repeated [closed]
One day I worked at a desk for more than 18 hours. Except for the time when I had foods or went to rest room, I looked at my monitor which was at 45 degrees to the right side. After the work, I slept ...
- 111
0
votes
0
answers
68
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How long would it take for someone to bleed to death from having their skin flayed off?
Peter Niers was a 16th-centry serial killer/bandit leader who was executed in an especially brutal way in 1581. I have no idea how reliable the sources are on the topic, as they all seem to be pop-...
- 95
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0
answers
27
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Etiologies of abdominal pulses
Except in case of abdominal aorta Anevrysms, when can we feel a pathological abdominal pulse?
0
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1
answer
35
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Looking for a comprehensive list of allergies
I need to put together a list of allergies for a software project I am working on.
Can someone direct me to a site or book that contains a navigational or indexed list of allergies?
What I need is ...
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-2
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0
answers
84
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Can running hot water on a person’s back, help cure the corona virus? [closed]
According to the articles and studies below, hot water used in a therapeutic way, can increase blood flow
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4225921/
https://www.ncbi.nlm.nih.gov/pmc/...
-2
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0
answers
27
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Natural remedies for eye floaters [closed]
Any Natural remedies for eye floaters?
What exercise and food intake do we have to do to get rid of eye floaters?
- 97
-1
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0
answers
14
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Epsom salts don’t work, what else is there? [closed]
I just learned that magnesium, the helpful thing in Epsom salts, can’t be absorbed through your skin during a hot bath meaning it’s useless.
Are there any other examples like this that most people ...
- 127
-5
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0
answers
34
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I discovered a method to treat inguinal hernia without surgery, how to make this method available in hospitals? [closed]
I cured myself, I was the only person treated with this method, there isn’t enough research or evidence, so I hope this community can help me finding solutions.
To protect non-medical professionals ...
-2
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0
answers
22
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Risks for children health, when men conceive at later age [closed]
Now, there is some information on internet about this, but I would appreciate if someone can provide a summary, or link to more authoritative information on following topic.
Question: As men age, how ...
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-1
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0
answers
18
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How do we know how long spermatogenesis takes?
I've seen it cited as anywhere from between 2 and 3 months. One paper used germline mutations to estimate the length of one stage as 4 months (but with a very large uncertainty). How do we know how ...
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-1
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0
answers
30
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Why it's necessary to do lgG blood test with no breakfast [closed]
A clinic told that it's necessary to avoid eating before the test. Usually such requirement exist for common/sugar blood test. Could eating in the morning affect lgG test (detecting antibodies from ...
- 1
0
votes
1
answer
44
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Administration of Covid Vaccine for Small Children in the EU
Is there a way to see the progress of the administration of Covid vaccines for small children (age under five) in the EU?
It is not easy to find all information in the usual news sources.
Maybe there ...
- 119
0
votes
1
answer
59
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Why are antidepressants used to treat OCD?
I was wondering why antidepressants are used to treat OCD. I would like to know it from a biological/ biochemical point of view.
Edit:
Since I've been asked, I was specifically interested in the ...
- 11
3
votes
0
answers
28
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How much spare space is needed in foot-shaped children's shoes?
In Germany, most advice regarding children's footwear says that there should be space from 12mm to 17mm between foot length and shoe inner length. From googling aroung I found that this advice is also ...
- 131
3
votes
1
answer
91
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Distinguishing gallbladder polyps vs gallbladder cancer on ultrasound
"On ultrasound a gallbladder polyp is seen as an elevation of the gallbladder wall that protrudes into the lumen. (...) A clearly infiltrating or large mass should be treated as a gallbladder ...
2
votes
0
answers
12
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Size of somatosensory overlap/intermediate zone for pain/light touch
For somatosensory innervation, there is a substantial overlap within the spinal cord and dermatomes, so that the (maximal) innervation zones of adjacent spinal roots form overlapping/intermediate ...
- 121
0
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0
answers
22
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Do quick-release drugs increase physiological dependence?
I'm aware that quick-release drugs are more addictive in that they have a stronger psychological habit-forming effect, but assuming that the dose is kept constant, what effect does using a quicker-...
- 282
11
votes
3
answers
6k
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Why does the World Health Organization still treat COVID-19 as a pandemic, when it is now reportedly causing fewer deaths than influenza?
Supposedly the World Health Organization is the top authority worldwide for public health. One would hope that they base their decisions on empirical data and not beliefs. However, from my perspective,...
- 1,015
2
votes
0
answers
18
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Rate of Liver Lesion formation following Cholecystectomy
I am currently reading up on liver lesions, fibrosis, and cirrhosis. I am particularly interested in the rates of formation. For instance cancerous lesions can appear rapidly while more chronic ...
- 121
1
vote
2
answers
80
views
Failing to disclose contagious illness
Suppose a doctor prescribes a family member (who lives in the same home) some test for an infectious disease, and then that family member tests positive. Is it a violation of medical ethics to fail to ...
2
votes
0
answers
23
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Quantitative retinal mosaic analysis corroborating better scotopic vision in colorblind individuals
According to https://www.sciencedirect.com/science/article/pii/S0042698997003398, color blind individuals have been shown to have an increased ability to see in very low light. Has there been any ...
- 313
3
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0
answers
89
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Is going to sleep at 10PM healthier than at 12AM?
I have heard often that the hours you sleep before 12 AM are extra important, so for example it is better to sleep from 22:00 until 6:00 than to sleep from 0:00 until 8:00. In order to specify the ...
- 203
3
votes
0
answers
28
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Long-term effects of exercise on inflammatory response in rheumatoid arthritis patients
How does long-term exposure to consistent exercise in Rheumatoid Arthritis patients affect their inflammatory response, and what are the mechanisms for any such change if it is at all understood?
...
- 131
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0
answers
32
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Using Aspirin to Counter Platelet Aggregating Effects of COX2 Inhibitors?
I've been reading pharmacology of NSAIDs a bit and I came over the point that,
Selective COX2 Inhibitors will cause unopposed Thromboxane A2 action but are otherwise great as anti-inflammatory agents.
...
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6
votes
1
answer
115
views
What kind of inflammation is caused by diabetes?
Quote from the notice for diabetics about COVID:
Diabetes causes inflammation in the body and you have a harder time fighting off an infection like the virus that causes COVID-19
What does it mean &...
- 113
0
votes
0
answers
17
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List of medical synonyms for information retrieval, elastic search
0
I am looking for a list of medical synonyms to use at token filter stage in elastic search (it will read a synonyms.txt file) basically equivalent to this one in emerse search engine:
https://...
-1
votes
0
answers
30
views
What causes expired rapid response tests to have oddly curved, non-control lines to appear after the intended timeframe?
As I understand, rapid response tests are expected to only give an answer by a time listed, which in Covid-19 tests that I'm familiar with, is usually 15 minutes, with a sometimes specified maximum ...
0
votes
0
answers
19
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How does organism activity affect the spread of disease? [duplicate]
The spread of infectious diseases is affected by human activity. Agriculture, for example, increases the rate of zoonoses.
In many cases, a greater rate of interaction between different organisms ...
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13
votes
1
answer
2k
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Rapid Response COVID-19 Antigen Test: What can be assumed by the control bar?
Rapid COVID-19 antigen tests include a control line similar to this:
From Case Western Reserve rapid testing instruction available here.
What does the control bar/strip control for?
All the ...
- 233
5
votes
1
answer
81
views
What does 'No outcome of interest' mean?
I am a stranger to medical sciences and also a foreigner so it is not easy to read medical papers.
Can I ask what 'No outcome of interest' means?
What I tried to figure out was "Is artificial ...
- 53
0
votes
1
answer
75
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Are this web sites medical claims to cure herpes actually a scam?
This website makes the following medical claims:
You will permanently get rid of HSV, and it will not come back as long as you are not infected again from another person who has the virus.
You will ...
- 237
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0
answers
34
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Why have we obtained significantly different results for moisture content on two different brands of moisture analyzers?
Our pharmaceutical laboratory has two moisture analyzers in use; one is Shimadzu MOC3u (MC-A), and the other is Mettler-Toledo HC103 (MC-B).
A sample from the same batch was put on each instrument to ...
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1
vote
1
answer
46
views
A swollen body organ filled with fluid
I was wondering how shall I describe one's foot, knee etc. which due to some injuries in sport has swollen and is filled with fluid.
It is most of the time painful and can cause you feel uncomfortable....
- 111
1
vote
1
answer
69
views
Why do ventricular action potentials have no local potentials like neuronal action potentials?
I noticed that the depolarization in the ventricular action potential (bottom image) is just a sharp spike, with no local potential that gradually achieves the threshold potential (like the top image, ...
- 83
2
votes
1
answer
239
views
Why does GFR have such a strange unit of measurement?
I have learned the unit of glomerular filtration rate (GFR) is commonly reported in mL/min/1.73m².
I cannot figure out the 1.73, is it just a scaling factor to get a number around 100 or does it have ...
1
vote
1
answer
62
views
Topical local anesthesia affecting the brain
If a medical provider uses local anesthesia on say the nose or ears (a location near the brain), could it extend to the brain and put part of the brain to "sleep"?
Would the patient be able ...
- 13
1
vote
1
answer
517
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Is it dangerous to consume 30 mg of Zinc (as Zinc Picolinate) per day?
I was looking at the information about a zinc supplement product. Its specifications show that each does contains 30 mg of Zinc (as Zinc Picolinate), and that this is 275% of the daily value. Since an ...
- 111
2
votes
1
answer
57
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Is there a modern term for "pessary cell"?
I was reading about the vitamin B12, and came across the description of a rare syndrome, with a mention of the "pessary cell" (a red blood cell in which the hemoglobin has disappeared from ...
- 1,566