Lab values & electrolytes worksheet with answers

The sweat chloride test is used to diagnose which condition?

1. ADiabetes mellitus
2. BSickle cell disease
3. CCystic fibrosis
4. DHypothyroidism

Serum amylase is less specific than lipase for pancreatitis because amylase also comes from:

1. AThe heart muscle
2. BThe salivary glands
3. CThe bone marrow
4. DThe thyroid gland

Using American Diabetes Association (ADA) criteria, a fasting plasma glucose of 100–125 mg/dL (5.6–6.9 mmol/L) is classed as:

1. AMild hypoglycemia (low glucose)
2. BType 1 diabetes mellitus
3. CNormal fasting glucose for an adult
4. DPrediabetes (impaired fasting glucose)

A patient on a heparin infusion has an aPTT below the target range on the protocol. What should the nurse do?

1. ASwitch the infusion to oral warfarin without a prescription
2. BStop the infusion and give protamine sulfate as quickly as possible
3. CContinue the same rate and recheck the aPTT in a few days
4. DAdjust the rate as the protocol directs and recheck as scheduled

A patient taking spironolactone asks about using a salt substitute. What should the nurse explain?

1. AMost salt substitutes contain potassium and can raise the level too high
2. BSalt substitutes are safe because they contain only sodium chloride
3. CSalt substitutes are fine as long as the patient drinks more water
4. DSalt substitutes protect against the potassium loss caused by this drug

A patient on warfarin has an INR of 7.8 and a nosebleed. Which medication would the nurse expect the provider to prescribe?

1. AAcetylcysteine
2. BNaloxone hydrochloride
3. CVitamin K (phytonadione)
4. DProtamine sulfate

A patient with right upper abdominal pain from gallstones now has jaundice, a total bilirubin of 4.8 mg/dL (82 µmol/L) and a raised ALP. What is the most likely cause?

1. AUncomplicated gallbladder inflammation
2. BA stone blocking the common bile duct
3. CHemolysis caused by the gallstones
4. DGilbert syndrome triggered by pain

A patient with no kidney problems and a normal ECG has a potassium of 6.2 mEq/L. The laboratory comments that the sample was hemolyzed. What is the best interpretation?

1. AThe result may be falsely high; assess the patient and arrange a repeat sample
2. BThe potassium is certainly normal and needs no follow-up
3. CThe patient has kidney failure
4. DTreat immediately with insulin and glucose without further checks