My Sister Yvonne Has Had A Sudden Onset Of Severe

My sister Yvonne has had a sudden onset of severe Anemia (received 2 units blood that brought Hemoglobins up to 9), rapid weight loss, tired all the time, recurring UTI's, recurring Thrush in the mouth. EGD & Colonoscopy found no internal bleeding, did find Thrush in throat. WBC's are low, RBC's are low, Ferritins are high (like quadruple) Platelets-3+ clumps. Went to Hemotologist who had blood drawn, the lab called and said not all tests were completed due to blood clumped up. Is that normal to happen? Dr.'s concerned it may be myeloma. I'm hoping the Hemotologist will do a bone marrow draw when we go for test results. Just curious about the blood clumping. I have extensive CBC results if you need them. I'm SO worried about her and of course her dementia is really bad (I'm assuming because of the trauma her body is going through.