Lab values & electrolytes worksheet with answers

What is the commonly cited therapeutic range for serum digoxin?

1. AAbout 20–40 ng/mL
2. BAbout 10–20 ng/mL
3. CAbout 0.05–0.2 ng/mL
4. DAbout 0.5–2.0 ng/mL

The prostate-specific antigen (PSA) test is used mainly in relation to which organ?

1. AThyroid gland
2. BProstate gland
3. CPituitary gland
4. DPancreas

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. B3,000 mg/g (300 mg/mmol)
3. C300 mg/dL (3 mg/mL)
4. D30 mg/g (3 mg/mmol)

A patient on a heparin infusion has blood in the urine and an aPTT far above the target. The nurse stops the infusion and informs the provider. Which antidote should the nurse anticipate?

1. ANaloxone
2. BCalcium gluconate
3. CVitamin K (phytonadione)
4. DProtamine sulfate

The heparin infusion rate was changed according to protocol. When is the aPTT usually rechecked?

1. AAbout 6 hours after the change
2. BAbout 3 days after the change
3. COnly after the infusion is stopped
4. DAbout 30 minutes after the change

Before giving prescribed IV potassium chloride, which assessment is most important?

1. AHearing in both ears
2. BSkin turgor on the forearm
3. CPupil size and reaction to light
4. DUrine output and kidney function

On the evening after surgery, a patient’s hemoglobin has fallen from 12.5 g/dL to 8.1 g/dL (125 to 81 g/L), and the heart rate is 118/min. What is the most likely problem?

1. AAn improving condition
2. BNormal dilution after surgery that needs no action
3. CBleeding
4. DDehydration

An older adult with type 2 diabetes is drowsy and very dehydrated. Glucose 920 mg/dL (51 mmol/L), serum osmolality 350 mOsm/kg, pH 7.36, urine ketones negative or trace. Which condition fits best?

1. ASyndrome of inappropriate ADH (SIADH)
2. BDiabetic ketoacidosis (DKA)
3. CHyperosmolar hyperglycemic state (HHS)
4. DMetformin-related lactic acidosis