Лабораторные показатели и электролиты: лист заданий с ответами
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1.Лёгкая
A laboratory reports that a blood sample is "hemolyzed." What does this mean?
AThe sample was taken from an artery
BThe sample has a very low hemoglobin
CRed cells in the sample have broken open
DThe sample contains too many platelets
2.Лёгкая
Какой катион является основным во внутриклеточной жидкости?
AКалий
BКальций
CХлорид
DНатрий
3.Лёгкая
Каков общепринятый терапевтический диапазон дигоксина в сыворотке?
AОколо 20–40 ng/mL
BОколо 10–20 ng/mL
CОколо 0,5–2,0 ng/mL
DОколо 0,05–0,2 ng/mL
4.Средняя
A healthy patient has a mildly raised CK after running a marathon yesterday, without dark urine or symptoms. What is the most likely explanation?
AAn acute myocardial infarction has occurred
BThe patient has developed acute hepatitis
CThe patient has developed acute pancreatitis
DStrenuous exercise raised CK from skeletal muscle
5.Средняя
A patient with iron-deficiency anemia started oral iron. Which result is usually the earliest sign that treatment is working?
AA fall in the white cell count
BA rise in the platelet count
CA rise in the reticulocyte count
DA fall in the mean cell volume (MCV)
6.Средняя
A pregnant woman's blood type is O Rh-negative, and her antibody screen (indirect Coombs test) is negative. What is usually offered at about 28 weeks?
ADaily oral iron and folic acid supplements only
BAn IV dose of vitamin K given for the fetus
CA transfusion of group O Rh-positive red cells
DAnti-D immunoglobulin (Rho(D) immune globulin)
7.Сложная
A woman with preeclampsia is receiving IV magnesium sulfate. Her urine output has fallen and her creatinine is rising. Why is this a concern?
AMagnesium is broken down by the liver, so it will stop working soon
BMagnesium causes potassium loss, so the kidneys release more fluid
CMagnesium is excreted by the kidneys, so it can build up to toxic levels
DPoor kidney function makes the magnesium level fall quickly
8.Сложная
A 5-year-old has new bruising and petechiae two weeks after a viral illness. Platelets are 12 × 10³/µL; hemoglobin, white cell count and clotting times are normal. Which condition is most likely?
AAcute leukemia
BImmune thrombocytopenia (ITP)
CDisseminated intravascular coagulation
DHemophilia A
Ответы
1. C · Red cells in the sample have broken open
2. A · Калий
3. C · Около 0,5–2,0 ng/mL
4. D · Strenuous exercise raised CK from skeletal muscle
5. C · A rise in the reticulocyte count
6. D · Anti-D immunoglobulin (Rho(D) immune globulin)
7. C · Magnesium is excreted by the kidneys, so it can build up to toxic levels
8. B · Immune thrombocytopenia (ITP)
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