Scheda di esercizi di Valori di laboratorio ed elettroliti con soluzioni

A serum sodium of 151 mEq/L is called:

1. AHypernatremia
2. BHyponatremia
3. CHyperkalemia
4. DHypercalcemia

What is the effect of insulin on serum potassium?

1. AIt moves potassium into cells, lowering the serum level
2. BIt makes the kidneys keep more potassium in the blood
3. CIt has no effect on potassium in any amount
4. DIt moves potassium out of cells, raising the serum level

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

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

Nella malattia renale cronica, un fosfato sierico alto si accompagna di solito a quale variazione del calcio?

1. ANessuna variazione del calcio
2. BUn calcio sierico alto
3. CSolo un potassio sierico alto, senza variazione del calcio
4. DUn calcio sierico basso

A patient has macrocytic anemia with numbness and tingling of the feet and poor balance. Which deficiency is most likely?

1. AVitamin C (ascorbic acid)
2. BFolate (folic acid)
3. CIron (low ferritin)
4. DVitamin B₁₂

When several samples are drawn at the same venipuncture, which tubes or bottles are filled first?

1. ACoagulation (citrate) tubes
2. BFluoride (glucose) tubes
3. CEDTA (complete blood count) tubes
4. DBlood culture bottles

A patient receiving chemotherapy has a white cell count of 1,8 × 10³/µL with 20% neutrophils and 5% bands. What is the absolute neutrophil count (ANC)?

1. A4,500/µL
2. B360/µL
3. C1,800/µL
4. D450/µL

At the start of a shift, the nurse reviews four new results. Which patient needs attention first?

1. APotassium 5,2 mEq/L in a patient with stable chronic kidney disease
2. BGlucose 180 mg/dL (10 mmol/L) after a meal in a patient with diabetes
3. CSodium 119 mEq/L in a patient with new confusion and vomiting
4. DHemoglobin 11,0 g/dL (110 g/L) in a patient with rheumatoid arthritis