Questions with 100% Correct Answers
2024-2025 A+
Which follows a viral infection?
acute ITP
chronic ITP
acute ITP
Which ITP is associated with adults, platelet count of 30,000-80,000, lasts months-years,
and is treated with steroids or a splenectomy?
acute
chronic
chronic
Which ITP treatments include immunosuppressent, IVIG, Rituximad, or Win-Rho?
chronic
Which drug is a monoclonal Ab against CD20 to stop production of anti-PLT receptor Ab
seen in chronic ITP?
IVIG
Win-Rho
Rituximab
Rituximab
In which is there an ADAMTS13 deficiency?
DIC
ITP
TTP
HUS
HELLP
TTP
What is the triad of symptoms in TTP?
,thrombocytopenia
MAHA
neurologic abnormalities
Name the test:
uses an automated lacet to make 1 mm deep incision on the forearm and white filter paper
absorbs blood in 30 second intervals
bleeding time
If there is 8 blood marks on the filter paper during bleeding time test, what is the bleeding
time in minutes?
4 mins
Which test assesses in vivo platelet function?
PFA-100
TEG
Bleeding time
PT
bleeding time
Name the test:
test cartridges contain reagent to stimulate aggregation and citrated whole blood is
aspirated into the analyzer under flow conditions
PFA-100
In PFA-100, what must the platelet count be over?
100,000/uL
What reagents along with collagen are used in PFA-100?
ADP or EPI
Which test assesses in vitro platelet function?
PFA-100
TEG
Bleeding time
PT
PFA-100
,PFA-100 measures the time required for the platelet plug to occlude the aperture. This is
called:
closure time
PFA-100 is (increased or decreased) in VWD, Bernard-soulier, Glanzmann's, and gray
platelet syndrome.
increased
Name the test:
measurements are recorded between a rotating cup and torsion pin
optical system, internal camera, and 37C heating unit are used
TEG
What is the reagent used in conventional TEG?
kaolin
heparinase
TF and Kaolin
kaolin
What is the reagent used in TEG for patients on heparin?
kaolin
heparinase
TF and Kaolin
heparinase
What in vitro test utilizes cartridges laced the platelet agonists to measure the closure time?
PFA 100
What in vitro test uses citrated whole blood and measures the R time, K time, alpha angle,
maximum amplitude, and LY30?
TEG (thromboelastography)
What coagulation test utilizes platelet rich plasma (PRP)?
LTA
What is a reflex test for an abnormal APTT test?
, mixing study or factor assay
What effect does heparin have on thrombin test time?
prolongs thrombo time
Which test is used to monitor patients on low molecular weight heparin?
Anti Xa assay
What test is used to monitor patients on unfractioned heparin?
aPTT
a prolonged PT, APT, TT, undetectable fibrinogen by the class method would be seen in
afibrinogenemia
in this sex-linked recessive disorder, a common clinical finding is hemarthrosis, normal
platelet count, normal RIPA
hemophilia A
In this type of vWD, pt count is normal, PTT is prolonged, vwF antigen is very low or
absent, RIPA is absent and all vWF multimers are absent:
type 3
which of the following is recognized as viable treatment for TTP
plasma exchange
all of the following may be seen in HUS
decreased reticulocyte count
all of the following are associated with HELLP syndrome except:
absence of schistocytes
In this rare recessive disorder, patients are missing the radius bone and present with an
elevated WBC count and decreased platelet count
TAR syndrome
In this syndrome platelets are lacking dense granules, and present with oculocutaneous
albinism, bleeding gums, and excessive bleeding after surgery:
hermansky-pullak
which TEG parameter should let the clinical know a platelet transfusion is indicated