High-level discussions about 33-year-old Yulia Skripal's future were held last week ahead of her imminent discharge from hospital.
Doubts were raised over its authenticity but Viktoria has told Newsnight she was 100% certain it was Yulia.
Foreign Secretary Boris Johnson also called Skripal's condition "great news" and a testament to the emergency services and NHS staff.
"The so-called Skripal case has been used as a fictitious, orchestrated pretext for the unfounded massive expulsions of Russian diplomats not only from the United States and Britain, but also from a number of other countries who simply had their arms twisted", Lavrov said at a conference in Moscow.
Dr Blanshard said any speculation on when she might be well enough to leave hospital "will be just that - speculation".
The British government claims the Russian government is behind the attack, which the Kremlin has repeatedly and strenuously denied.
Facebook chief Mark Zuckerberg yet to see 'meaningful impact' from scandal
Facebook Canada said on Wednesday that more than 600,000 Canadians had their data "improperly shared" with Cambridge Analytica . The Sony messages included critical remarks about movie stars and others in the entertainment industry.
A British court gave OPCW specialists blood samples taken from Sergei and Yulia Skripal for tests, and the agency is also checking the toxin used in the attack.
A director of the Porton Down British military laboratory said this week that the nerve agent was from the Novichok class, a type designed and manufactured by the former Soviet Union.
Skripal's improvement marks the latest twist in an affair that British and Russian diplomats have variously compared with Sherlock Holmes and Agatha Christie mysteries. On Thursday, Yulia issued a statement from the hospital to say her "strength is growing daily".
Officials confirmed on Friday that two guinea pigs and a cat belonging to former Russian spy Sergei Skripal are dead after detectives investigating Skripal's poisoning sealed off access to his home in Salisbury, England.
In an extraordinary attack, Vassily Nebenzia, the #Russian Ambassador to the United Nations said: "Couldn't you come up with a better fake story?" Investigators later found that their front door showed the highest concentration of the nerve agent used against them.
They were found unconscious on a park bench in Salisbury on March 4.
Speaking after Mr. Nebenzia was UK Ambassador to UN, Karen Pierce, who said that her Government's investigations into the use of chemical weapons involved 250 police detectives interviewing more than 500 witnesses, supported by a range of experts and partners that have gone through more than 5,000 hours of video footage. "We have told our British colleagues that "you're playing with fire and you'll be sorry". Defra has said it believes the guinea pigs had died of thirst. Regrettably, "two guinea pigs had sadly died" by the time someone entered the home to see about the animals, the statement said, and "a cat was also found in a distressed state and a decision was taken by a veterinary surgeon to euthanize the animal to alleviate its suffering".