Scheda di esercizi di Valori di laboratorio ed elettroliti con soluzioni

Which substance contributes most to normal serum osmolality?

1. AGlucose in plasma
2. BUrea (from BUN)
3. CPlasma albumin
4. DSodium and its anions

What does a "culture and sensitivity" test of a sample show?

1. AThe amount of antibiotic in the patient's blood
2. BWhich organism grows and which antibiotics work on it
3. CWhether the patient is allergic to an antibiotic
4. DHow many white cells are present in the sample

Qual è un tipico intervallo di riferimento negli adulti per il sodio sierico?

1. A135–145 mEq/L
2. B3,5–5,0 mEq/L
3. C95–105 mEq/L
4. D150–165 mEq/L

A patient has burning on urination and frequency. The dipstick is positive for nitrites and leukocyte esterase, and a urine culture is ordered. When should the sample be taken?

1. AAt any time, as antibiotics do not matter
2. BAfter the symptoms have fully settled
3. CAfter 3 days of antibiotic treatment
4. DBefore the first dose of antibiotic

Un paziente in terapia con furosemide ha un potassio di 2,9 mEq/L. Quale reperto si aspetterebbe l'infermiere?

1. AOnde T alte e appuntite all'ECG
2. BFormicolio attorno alla bocca con segno di Chvostek positivo
3. CDiarrea e crampi addominali da intestino iperattivo
4. DDebolezza muscolare e crampi alle gambe

Un paziente ha un sodio di 152 mEq/L. Quali reperti si aspetterebbe l'infermiere?

1. ABradicardia con onde T appuntite
2. BAumento di peso con caviglie gonfie
3. CSete, mucose secche e irrequietezza
4. DContrazioni muscolari con segno di Trousseau positivo

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. ALatent TB infection, which is not contagious
2. BPast BCG vaccination only, with no infection
3. CActive pulmonary TB, which is contagious
4. DA false result, as the test does not detect TB

A 5-year-old has new bruising and petechiae two weeks after a viral illness. Platelets are 12 × 10³/µL; hemoglobin, white cell count and clotting times are normal. Which condition is most likely?

1. ADisseminated intravascular coagulation
2. BHemophilia A
3. CImmune thrombocytopenia (ITP)
4. DAcute leukemia