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9 views

Why do changes in Effective Refractory Period in Response to Antiarrhytmics occur and how do they help in treating the arrhythmia?

I am having trouble understanding two related concepts. First, why changes in ERP occur when there is the administration of certain antiarrhythmics (eg: Class IC). A neat explanation that I have ...
0
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1answer
60 views

What is the essential difference between a general numbing agent or a general anesthetic to a general analgesic?

I would say from my limited prior research that the difference between a general numbing agent or a general anesthetic to an analgesic (or "painkiller") is that the former prevents the firing of ...
1
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1answer
32 views

How to interpret diabetic complications?

I have a database of diabetic patients. Mostly 80 % are T2DM patients. Now I would like to identify the T2DM patients based on their conditions reported. I mean when patients visit hospital (diabetic ...
2
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0answers
31 views

How exactly do respirators seal out pathogens? [closed]

A "respirator with a rating of P100, has been tested to be proof against oil, and tested to filter 99.97% of all particles 0.3 microns in diameter or larger.' As you know, an atom is 99.9999% empty ...
2
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1answer
43 views

Is there a standard about maximal caffeine concentration for synergistic painkiller preparations?

Synergistic painkiller preparations are common world wide in the following combination drug forms, for example: paracetamol-ibuprofen-caffeine paracetamol-codeine-caffeine aspirin-paracetamol-...
4
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0answers
24 views

Are there probiotics for upper respiratory tract tissue?

If the lungs can be subject to bacterial infection, why do there not exist beneficial probiotics that live in lung tissue to combat "bad" bacteria proliferation?
1
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0answers
24 views

i have appointment for “Elektiv-Ambulanz” (Germany) [closed]

I have an appointment for "Elektiv-Ambulanz", what does it mean I want to do my surgery as an outpatient instead of inpatient.
0
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0answers
13 views

When do we get lower limb extensor rigidity vs flexor rigidity in a cerebrovascular accident?

Normally in an internal capsule stroke causing hemiplegia why do the lower limb extensor muscles(anti-gravity muscles) develop spasticity?
1
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0answers
34 views

How does a “normal” N95 respirators differ from a medical variant N95 respirator? [closed]

This question popped up as I was wondering if I could use my haze masks in place of a even normal-er surgical mask. Didn't find any answers (or even the question) anywhere. I looked up 3M's ...
1
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0answers
28 views

Are respirators a better option to prevent infection? [closed]

Are respirators a better alternative to surgical or n95 masks when it comes to preventing infection by the 2019 ncov virus?
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0answers
88 views

What is the essential difference between laser for hair/scar/tattoo removal?

I don't have enough physics knowledge to understand the possible difference between laser for hair removal, laser for scar removal and laser for tattoo removal. My problem I don't understand what is ...
1
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0answers
24 views

STD Symptoms that show up in the next day [closed]

Is there any STD that has symptoms that show up immidiatly or within 24 hours?
3
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0answers
119 views

Does someone in world already have antibodies against Wuhan coronavirus?

There's this interactive map showing progression of Wuhan coronavirus. And among other indicators it also shows number of cured individuals (38 at the moment), which is less than number of deaths, but ...
1
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1answer
45 views

Are there standardized first line treatments in neck and/or shoulder and/or back pain for an otherwise healthy person?

I understand that very typical activities, so typical that people might not even think about them, such as: Walking primarily or only with shoes instead "flipflops" and alike Using proper shoe ...
5
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1answer
479 views

Can a calorie be neither protein, carb, nor fat?

I recently started using MyFitnessPal to try to lose weight and I noticed that a particular beer I had drunk has a tremendous number of calories relative to the number of grams of carbs it contains ...
2
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1answer
72 views

Kidney stones and sodium (salt)

In order to prevent and maybe (see below) help dissolving kidney stones, I read it is better to dramatically reduce salt intake (among other things). Some sites even recommend a 0-salt diet. While ...
1
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0answers
27 views

Viruses evolving in less dangerous forms

My question could be naive, but I was not able to find an answer. I have read at several places that viruses tend to evolve to less dangerous forms (HIV for example), se they do not run out of hosts, ...
0
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0answers
32 views

Is there a greater benefit as as to why an ob-gyn will prescribe a birth control with higher risk of Venous Thromboembolism?

It is already known that combined oral contraceptive (COCs) pills increase the risk of serious complications such as Venous Thromboembolism. However there are other options that have relatively much ...
0
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0answers
48 views

What are the most significant breast tissues in Gynecomastia?

From prior research I understand that only these types of tissues can cause gynecomastia: Adipose tissue ("watery") Mammary Gland Tissue ("viscous") Excessive skin tissue ("saggy") Connective Tissue ...
0
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1answer
34 views

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 ...
1
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0answers
24 views

Where is a CT scan better than an MRI, where is an MRI better than a CT scan, and where is an ultrasound better than the first two? [closed]

I've always assumed that a CT scan is better at "hard" objects, while an MRI is better at "soft" objects, but then I heard that CT scans (even without contrast) can be used to diagnose soft body ...
1
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0answers
18 views

Using body soap on hair [closed]

I'm asking from my boyfriend: Since my childhood, I'm used to use solid body soap when washing my hair in addition to shampoo. I have oily hair and soap can clean it better than a shampoo. Recently ...
9
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1answer
569 views

2019 Novel Coronavirus (nCoV) lifetime outside an organism

How long will it remain potent outside an organism? I'm thinking in the context of if it can survive a couple of weeks or a month in the mail for the recipient to get infected. Edit: I tried ...
1
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0answers
22 views

When should humans do laser scar treatment (in what, or after what stage of scar healing)?

I understand that wound healing (open wound, closure, closed wound) is basically finished when a closed wound is modulated into a scar. I further understand that scar healing is comprised of the ...
3
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1answer
59 views

Do Tamoxifen and other similar SERMs reduce chest fat chronically or permanently?

I am sorry if it mistaken (please comment or suggest an edit to fix) but by chronically I mean as long as the molecule is administered and effective and by permanently I mean after the molecule was ...
0
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0answers
12 views

Cervical spondylitis and Occipital headache

I would like to know the cause of occipital headache in cervical spondylitis
3
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1answer
68 views

General purpose vomit response control?

Is there a general purpose antiemetic for vomit response control? Many vomit control solutions are focused on specific causes for the vomiting. Some common causes of nausea/vomiting: Cancer ...
0
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0answers
45 views

Are there any substances that can make the hair grow more straight or smoother?

From prior research on substances that change hair texture, I read in the past (and couldn't find lots of sources now) that some Vitamin A derivatives or acne medicines can cause curly hair and that ...
4
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2answers
61 views

What's the mechanism of urinating?

I googled and read about the kidneys, bladder, and urethra but no source explains the dynamic process. From my own personal experience, the process has four stages: The muscles are in normal mode. ...
1
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0answers
22 views

Study about beliefs overriding drug effect

Now placebo is one thing that is documented and proven. However, I came across the following which claims that our beliefs can override drug effect: One researcher in this field, Dr. Henry Beecher ...
0
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1answer
45 views

Risks of unprotected anal sex versus vaginal?

I know that anal sex has higher chances of transmitting HIV for both partners. What I haven't been able to find is if there are risks of unprotected anal sex not present on unprotected vaginal sex, ...
-3
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2answers
140 views

Does being transgender a mental health condition? If no, why not?

IMPORTANT NOTE: This question focuses on scientific aspects of gender dysphoria only. By no means I desire to disrespect anybody and will gladly have comments about any mistake I might have. My ...
-1
votes
1answer
37 views

What kind of personal body scanning equipment can you legally buy? [closed]

I would like a personal body scanner. What kind of things can I buy that's legal and safe? Is a ultrasound safe and what kind of things can it see? I think an MRI scanner would be a bit too ...
3
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1answer
66 views

Questions about neutrophils

I've read different places that neutrophils are primarly increased with bacterial and fungal infections. According to Wikipedia they 'defend against bacterial and fungal infection'. Given that a ...
0
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0answers
50 views

What is the process of calculating if a molecule is helpful and/or harmful to an organism?

From reading about pharmacology through the years I synthesized from my own prior research that What is the process of calculating if a molecule is helpful and/or harmful to an organism is this: A ...
1
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1answer
50 views

Are virus strains different viruses?

This question comes about from another virology question concerning the common cold (Would being infected with every kind of cold virus strain at once be a good immunization or dangerous?). The ...
2
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1answer
34 views

How does Diabetic specialist clinic work?

I am from IT domain and would like to seek some help on certain medicine related questions I would like to know how does Diabetic specialist hospital/clinic work for Diabetic patients when compared ...
7
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1answer
117 views

Can drinking ultra-pure water be dangerous?

I work in a molecular biology laboratory, where we have a special filtration system for producing ultra-pure water for buffers, reagents, etc. Around the lab, I have heard many times what sounds to me ...
1
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1answer
23 views

Are collagen supplements of any use to help prevent or treat a tendinopathy?

Are collagen supplements been scientifically shown of any use to help prevent or treat a tendinopathy? If so, what kind of collagen supplements (e.g., type of collagen, source of collagen such as (...
1
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0answers
17 views

Is there any medical upside in using a sunscreen that isn't broad spectrum (i.e., protecting against UVA and UVB)?

I read on https://en.wikipedia.org/wiki/Ultraviolet_index: Because of the way the UV index is calculated, it technically expresses the risk of developing sunburn, which is caused mostly by UVB ...
3
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0answers
53 views

Would being infected with every kind of cold virus strain at once be a good immunization or dangerous?

I know colds come from around 200 different kinds of viruses. https://en.m.wikipedia.org/wiki/Common_cold But would it be worth the risk to be purposefully infected with every type of strain that ...
1
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1answer
32 views

Does a Parkinson's Disease always reach the final stage 5

There are five stages of Parkinson's Disease (according to https://parkinsonsnewstoday.com/parkinsons-stages/ for instance) Are there exceptions or do patients always reach the last stage (5) - ...
0
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0answers
36 views

Is there common database about drugs from around the world?

Let's say I would like to find cheaper Chinese alternative or find a drug by an active substance (by Xylose Isomerase for instance). Is there any site that could help with that?
1
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1answer
36 views

What is the meaning of “group-by-region interaction effects” (PET scan study of brains affected by schizophrenia)?

I was reading a recent study on schizophrenia and came across this sentence: We found significant group and group-by-region interaction effects on volume of distribution (VT). What is the ...
1
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1answer
28 views

Can a medical doctor write a prescription which has not gone through a formal diagnosis to identify as needed?

This question largely arises from a scene in the TV Show Frasier, but it got me wondering, can a Doctor write a prescription for an individual that he knows they need, but has not gone through the ...
5
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1answer
1k views

Does brushing your teeth immediately after sleeping have some medical significance?

Context: I have generally only brushed my teeth once-a-day, before going to bed. My dentist has advised to start brushing twice a day, adding "immediately in the morning" to my dental routine. I ...
3
votes
1answer
40 views

What is daily sedation interruption for ventilated patients?

I was reading about ventilator bundle here and came across this term called Daily Sedation Interruption. Does this term mean break in giving the sedation drugs? How can this help in reducing the ...
0
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0answers
15 views

What is the difference between the TNM and cancer staging

I know there are different staging methods. In breast cancer the TNM and basic staging of breast cancer are integrated. In colon cancer we have the TNM staging and the another method ranging from 0 to ...
0
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1answer
41 views

Does blood pressure have a daily pattern?

before nothing I am not a doctor, I am a simple programmer that likes to read about medicial sciencies. I've read in this book that the blood pressure it very important; is it really? Then I have ...
0
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0answers
19 views

What is the range of times for fasting for glucose and cholesterol/lipid tests?

I have been reading references on the Internet about the fasting times before getting a blood test for glucose and cholesterol/lipid, and they all indicate at least 8 hrs for glucose and 10-12 hrs for ...

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