12:36pm
Prof Kinsey noted she had observed from the nursing notes, a naso-gastric tube had been present for Child E, and the aspirates were 'unremarkable'. The abdomen was 'soft, not distended' and Child E's bowels opened.
At August 3, 10.44am, Child E was 'pink and well perfused'.
The professor confirms she had recorded Lucy Letby's nursing note for August 4, 2015, an observation chart for Child E on August 4, and blood gas record for Child E recording a decline for the baby boy.
12:40pm
Prof Kinsey said the "striking thing" was there had been a big change [a drop] in the haemoglobin levels for Child E from 10.21pm at August 3 to 1.05am on August 4.
It was significant in that Child E had lost blood in the aspirates, and would only have had a calculated total blood volume of 142ml in his system at that time.
12:41pm
Prof Kinsey said, for her conclusion for Child E, the haemoglobin count had been normal, as had the platelet count, prior to the deterioration.
"This was spontaneous bleeding, with no clear explanation."
12:46pm
The case now turns to Child F.
Mr Johnson says the significance of Child F is on a comparative basis to identical twin brother Child E.
Prof Kinsey confirms she has had access to Child F's medical records, which was for the context of Child E on a haematological level.
She said she looked at the history of Child F, and 'one or two things happened' which helped her in her investigation.
She said there were three blood investigations for Child F, over the space of two and a half years, which showed 'normal results'.
Child F had had a physical accident when a small child, and there were no haematological-related problems when he was checked, the court hears.
Child F was said to be 'slightly iron deficient' when tested at the age of two years old, but that was 'normal for infants'.
The blood results were "completely normal" for Child F.
The bleeding for Child E in August 2015, based on that medical history, was "not spontaneous", Professor Kinsey tells the court.
12:50pm
Skin discolourations were noted for Child E, the court is told.
Mr Johnson asks about the issue of air embolus as a cause for Child E's death.
Prof Kinsey has produced diagrams to display how an air embolus in the body can present itself externally.
These diagrams are shown to the court.
12:52pm
Haemoglobin is found in red blood cells.
Deoxygenated haemoglobin is blue in colour, while oxygenated haemoglobin is bright red.
A diagram is shown on how part of the air/blood circulation system works in a body.
The trial of Lucy Letby, who denies murdering seven babies at the Countess of Chester Hospital neonatal unit and attempting to murder 10 more,…
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