Phiếu bài tập Giá trị xét nghiệm và điện giải có đáp án

What does the term "leukopenia" mean?

1. AA high white blood cell count
2. BA low red blood cell count
3. CA low white blood cell count
4. DA high platelet count

Which tube additive is used for a complete blood count (CBC)?

1. ANo additive, clot activator (red top)
2. BEDTA (usually a lavender or purple top)
3. CSodium fluoride (usually a gray top)
4. DSodium citrate (usually a light blue top)

In the US (NCEP ATP III) classification, which total cholesterol level is called desirable for an adult?

1. ABetween 250 and 300 mg/dL (6,5–7,8 mmol/L)
2. BBelow 300 mg/dL (7,8 mmol/L)
3. CAbove 240 mg/dL (6,2 mmol/L)
4. DBelow 200 mg/dL (5,2 mmol/L)

In countries that screen all pregnant women (such as the US), a vaginal-rectal swab is taken at about 36–37 weeks. Which organism is it screening for?

1. AHepatitis B virus
2. BGroup B Streptococcus
3. CStaphylococcus aureus
4. DCandida albicans

A patient is starting dabigatran, a direct oral anticoagulant. Which laboratory test is most important to review before the first dose?

1. ATSH, to rule out an overactive thyroid gland
2. BKidney function (creatinine clearance)
3. CLipase, to rule out an inflamed pancreas first
4. DINR, to set the dose of the anticoagulant

A patient on warfarin has an INR of 7,8 and a nosebleed. Which medication would the nurse expect the provider to prescribe?

1. AProtamine sulfate
2. BVitamin K (phytonadione)
3. CAcetylcysteine
4. DNaloxone hydrochloride

A patient with cirrhosis and ascites has fever and abdominal tenderness. The ascitic fluid neutrophil count is 400 cells/mm³. What does this indicate?

1. ANormal ascitic fluid in cirrhosis
2. BSpontaneous bacterial peritonitis
3. CBleeding into the abdominal cavity
4. DMalignant ascites from cancer

A trauma patient receives many units of blood quickly and then develops muscle twitching and low blood pressure. Which laboratory value is most likely to explain this?

1. AA low ionized calcium
2. BA high serum magnesium
3. CA high serum sodium
4. DA low serum glucose