Scheda di esercizi di Valori di laboratorio ed elettroliti con soluzioni

Which blood marker is the most specific for injury to the heart muscle?

1. ALactate dehydrogenase
2. BCardiac troponin
3. CSerum myoglobin
4. DTotal creatine kinase

What is a main role of albumin in the blood?

1. AIt holds fluid in the vessels by oncotic pressure
2. BIt fights bacteria by engulfing them in the blood
3. CIt forms the mesh that holds a blood clot together
4. DIt carries oxygen from the lungs to the tissues

In a person with HIV infection, a CD4 count below which level defines AIDS?

1. A200 cells/µL
2. B50 cells/µL
3. C1,000 cells/µL
4. D500 cells/µL

A patient with type 2 diabetes starts prednisone each morning. When is the glucose most likely to be highest?

1. AIn the afternoon and evening
2. BIn the early morning, before the dose
3. CThe glucose will not change
4. DAt midnight only

A stool test for Clostridioides difficile is ordered. Which sample is appropriate?

1. AAny stool after a laxative dose
2. BA formed, hard stool sample
3. CA rectal swab from a patient with constipation
4. DAn unformed (liquid or soft) stool

Which change in clotting tests is normal in late pregnancy?

1. AFibrinogen and D-dimer rise
2. BaPTT doubles from baseline
3. CINR rises to about 3,0
4. DPlatelets rise above 600 × 10³/µL

Ten minutes into a red cell transfusion, a patient develops fever, chills, low back pain and dark urine. After stopping the transfusion, what should the nurse do next?

1. ARestart the transfusion more slowly after giving an antipyretic drug
2. BKeep the IV open with normal saline using new tubing and call the provider
3. CFlush the remaining blood through the line with the IV fluid to finish it
4. DDiscard the blood bag and tubing in the clinical waste to stop exposure

Un paziente senza problemi renali e con ECG normale ha un potassio di 6,2 mEq/L. Il laboratorio commenta che il campione era emolizzato. Qual è l'interpretazione migliore?

1. ATrattare subito con insulina e glucosio senza altri controlli
2. BIl paziente ha un'insufficienza renale
3. CIl potassio è sicuramente normale e non richiede follow-up
4. DIl risultato può essere falsamente alto; valutare il paziente e organizzare un campione di controllo