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

A low mean corpuscular hemoglobin concentration (MCHC) means that the red cells are:

1. AMore numerous than normal
2. BLarger than normal (macrocytic)
3. CPaler than normal (hypochromic)
4. DShaped like a sickle

What does the term "thrombocytosis" mean?

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

A raised alkaline phosphatase (ALP) is most typical of:

1. ALow production of hormone by the thyroid gland
2. BAcute damage to the heart muscle
3. CInflammation of the lining of the urinary bladder
4. DBlocked bile flow or increased bone turnover

A patient with acute pancreatitis has muscle twitching and numbness around the mouth. Which laboratory value should the nurse check?

1. ASerum sodium
2. BSerum chloride
3. CSerum calcium
4. DSerum amylase

Which IV fluid can be given through the same line as a red cell transfusion?

1. ALactated Ringer's (Hartmann's) solution
2. B5% dextrose in water
3. C0,9% sodium chloride
4. D0,45% sodium chloride

Vì sao calci toàn phần thấp phải được diễn giải thận trọng ở người bệnh có albumin huyết thanh thấp?

1. AAlbumin thấp làm mọi xét nghiệm calci không chính xác và vô dụng
2. BNhiều calci gắn với albumin, nên calci toàn phần giảm dù calci ion hóa bình thường
3. CAlbumin và calci được đo bằng cùng một phản ứng hóa học, nên luôn giảm cùng nhau
4. DAlbumin thấp luôn gây hạ calci máu thật, có triệu chứng

After a crush injury, a patient's urine dipstick is strongly positive for blood, but microscopy shows almost no red cells. CK is very high. What best explains this?

1. ABleeding is coming from the bladder lining
2. BA kidney stone is scraping the ureter lining
3. CMyoglobin from damaged muscle is in the urine
4. DThe sample was contaminated with menstrual blood

A nursing student has a positive interferon-gamma release assay (IGRA) for tuberculosis, no symptoms and a normal chest X-ray. What does this most likely mean?

1. AActive pulmonary TB, which is contagious
2. BPast BCG vaccination only, with no infection
3. CA false result, as the test does not detect TB
4. DLatent TB infection, which is not contagious