TASK DEFINITION: Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.
PROBLEM: I sometimes see the term 'critical but stable' in the news. It is often used to describe someone who has been very seriously injured. For example (15 December 2019): '[A police officer] said the man who had been shot was in a 'critical but stable ' condition in hospital.' I understand that 'critically ill' means that life is in danger. Similarly 'stable' is the opposite. Quotes from www.lexico.com critically To an extreme degree with a risk of death. 'two critically wounded people died in hospital'. 'critically ill patients who were awaiting surgery' stable (of a patient or their medical condition) not deteriorating in health after an injury or operation. 'he is now in a stable condition in hospital' What does 'critical but stable' really mean?.

SOLUTION: You specify British English but the only other answer with a quote is from a US source. I was curious if it was materially different in the UK. The UK newspaper article critical and serious condition: what hospitals mean when they report a patient's state indicates it means much the same here. (the bolded part is the direct answer to your question) Sometimes, people will include a suggestion of whether someone's condition is stable, improving or getting worse. A 'Critical but stable' condition, for instance, indicates that someone is in a bad state but not likely to get worse in the short-term. Others recommend against using that phrasing, however, since being in a critical condition implies that a patient vital signs are not stable.

PROBLEM: I'm not a native English speaker. I am having difficulty with some words. Could anyone please tell me if there's any difference between the above mentioned short sentences, as I'm a little confused.

SOLUTION: The short answer is 'not much'. The two expressions are more or less interchangeable. But it can depend on distance. 'Come over here' would be used if the person you were calling was some distance away, at the other end of a hall, let's say, and there were other people in between. 'Come over here' is also perhaps a little more polite. Either expression would be enhanced by adding 'please', but 'Come here please' can sound slightly imperious in certain situations, depending on the relationship of the individuals. A parent or teacher might say it to a child, but it is not the sort of thing one would perhaps say to a colleague, without adding something like 'Would you mind coming here a moment'. 'Come over here please' sounds a bit better than 'come here please'. There are other things you can add to 'come here' which makes it sound less stark e.g. 'Come here a minute' said in a tone as though you have something important to show them, would perhaps not require even a 'please'. I'm sure a lot more could be said on the subject, but I hope that helps.

PROBLEM: I understand the capitalization rule for nouns, proper nouns require a capital letter. Also, I should begin a new sentence with a capital letter. When & why 'mom/dad' requires a capital letter ? (Reference- ELL- I am at Vapi where mom is hospitalised) mom: (n) informal term for a mother/North American term for mum.

SOLUTION:
When it is their name, Mom and Dad would be capitalised: Dear Mom and Dad, I am just writing to let you know, that although everyone has a mom and a >dad, you are my special mom and dad. So, Mom, I just want to say 'brava!'; and Dad, 'bravo!'. I've just been telling Sis, that Mom's new coat is so cool. XX Here's the commentary from an exercise from BBC English on Line ...to have a roast chicken lunch with my mother. I can't wait! - mother does not need a capital 'M' as it is not being used to replace her name. If I said, 'I am going to lunch with Mum', it would need a capital letter, but 'I am going to lunch with my mum' does not.