Lab values & electrolytes worksheet with answers

Lactate is mainly produced when cells:

1. AStore glucose as glycogen in the muscles
2. BBreak down protein in the liver for energy
3. CBreak down fat completely with oxygen
4. DBreak down glucose without enough oxygen

A serum sodium of 128 mEq/L is called:

1. AHyponatremia
2. BHyperkalemia
3. CHypernatremia
4. DHypokalemia

What is a "critical value" (panic value) in laboratory reporting?

1. AA result so abnormal that it may threaten life and needs prompt action
2. BA result that is normal but differs from the patient's last value
3. CAny result that is slightly outside the laboratory reference range
4. DA result that the laboratory could not measure because of a bad sample

Which treatment lowers serum potassium by moving it into the cells?

1. AOral potassium chloride supplements
2. BIV calcium gluconate given over 10 minutes
3. CIV 0.45% sodium chloride infusion
4. DIV regular insulin given with glucose

Which instruction is correct for a patient starting oral iron tablets?

1. AYour urine will turn bright orange while you take it
2. BYour stools may turn dark green or black
3. CTake each tablet with milk to protect the stomach
4. DTake the tablet with an antacid to improve absorption

A patient on digoxin has a level of 2.8 ng/mL and a heart rate of 52/min. What is the nurse’s best action?

1. AHold the dose and inform the prescriber
2. BGive the dose and recheck the level in a month
3. CGive the dose, as the heart rate is above 50/min
4. DGive a double dose to correct the rhythm

A patient receiving IV magnesium sulfate has a respiratory rate of 9/min and absent patellar reflexes. After stopping the infusion, which medication should the nurse expect to give?

1. AProtamine sulfate
2. BPotassium chloride
3. CCalcium gluconate
4. DSodium bicarbonate

A patient has fever, chills, flank pain and costovertebral angle tenderness. Urinalysis shows many white cells and white cell casts. Which condition is most likely?

1. AAcute pyelonephritis
2. BNephrotic syndrome
3. CGlomerulonephritis
4. DSimple cystitis