Lembar kerja Nilai laboratorium & elektrolit dengan jawaban

Which ECG change is linked to hypercalcemia?

1. AA shortened QT interval
2. BProminent U waves
3. CA prolonged QT interval
4. DTall, peaked T waves

A urine albumin-to-creatinine ratio (ACR) of at least which value is usually called moderately increased albuminuria?

1. A3 mg/g (0,3 mg/mmol)
2. B30 mg/g (3 mg/mmol)
3. C3,000 mg/g (300 mg/mmol)
4. D300 mg/dL (3 mg/mL)

A laboratory reports that a blood sample is "hemolyzed." What does this mean?

1. AThe sample contains too many platelets
2. BThe sample has a very low hemoglobin
3. CRed cells in the sample have broken open
4. DThe sample was taken from an artery

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?

1. AAn IV dose of vitamin K given for the fetus
2. BA transfusion of group O Rh-positive red cells
3. CAnti-D immunoglobulin (Rho(D) immune globulin)
4. DDaily oral iron and folic acid supplements only

A stable adult who is not bleeding receives one unit of packed red cells. By about how much is the hemoglobin expected to rise?

1. AAbout 5 g/dL (50 g/L)
2. BAbout 0,1 g/dL (1 g/L)
3. CAbout 1 g/dL (10 g/L)
4. DAbout 3 g/dL (30 g/L)

A patient taking phenazopyridine for bladder pain has bright orange urine. What should the nurse know about urine tests?

1. AThe color shows severe liver failure is present
2. BThe dye can interfere with dipstick color readings
3. CThe color proves blood is present in the urine
4. DThe drug improves the accuracy of all dipsticks

Seorang pasien dengan natrium 132 mEq/L dan glukosa darah 600 mg/dL (33,3 mmol/L) dirawat. Mengapa nilai natrium ditafsirkan dengan hati-hati?

1. AGlukosa tidak berpengaruh pada natrium yang terukur
2. BHasil natrium pasti kesalahan laboratorium
3. CGlukosa tinggi menarik air ke dalam darah, mengencerkan natrium
4. DGlukosa tinggi menaikkan natrium terukur secara palsu, sehingga sebenarnya lebih rendah

A patient has a hemoglobin of 11,2 g/dL (112 g/L), an MCV of 64 fL, a normal ferritin and a normal-to-high red cell count. What is the most likely cause?

1. AAcute blood loss
2. BThalassemia trait
3. CVitamin B₁₂ deficiency
4. DIron deficiency