Lab values & electrolytes worksheet with answers

What does a raised erythrocyte sedimentation rate (ESR) show?

1. AA specific infection of the urinary tract by bacteria
2. BA low level of iron stored in the bone marrow
3. CDamage to heart muscle within the past few hours
4. DInflammation somewhere in the body, without showing where

In iron-deficiency anemia, the total iron-binding capacity (TIBC) is usually:

1. AHigh
2. BLow
3. CNormal
4. DAbsent

A serum sodium of 128 mEq/L is called:

1. AHyponatremia
2. BHypokalemia
3. CHyperkalemia
4. DHypernatremia

A patient on carbamazepine becomes confused and has a headache. Which laboratory result would most likely explain this?

1. AA low serum magnesium
2. BA high serum calcium
3. CA low serum sodium
4. DA high serum potassium

A patient’s hemoglobin is 7.8 g/dL (78 g/L). Which findings would the nurse expect?

1. AFatigue, pallor, a fast heart rate and breathlessness on exertion
2. BItching, yellow skin and dark urine
3. CA slow heart rate, flushed skin and a high blood pressure
4. DHeadache, nosebleeds and a red face

A conscious patient with a blood glucose of 54 mg/dL (3.0 mmol/L) has taken 15 g of fast-acting carbohydrate. When should the glucose be rechecked?

1. AThe next morning
2. BAt the next meal
3. CAfter about 2 hours
4. DAfter about 15 minutes

A patient has eaten very little for 2 weeks and has received broad-spectrum antibiotics. The INR is now 2.3 without warfarin, and the platelets are normal. What is the most likely cause?

1. AImmune thrombocytopenia
2. BIron-deficiency anemia
3. CHemophilia A
4. DVitamin K deficiency

An RN cares for a patient on a 24-hour urine collection. Which task can be delegated to unlicensed assistive personnel (UAP), such as a nursing or healthcare assistant?

1. ATeaching the patient why the 24-hour collection is needed
2. BDeciding whether to restart the collection after a missed sample
3. CInterpreting the creatinine clearance result when it comes back
4. DSaving all urine in the collection container as instructed