Lab/Diagnostic Values
Nursing Implications
Indication for High Lab Values
Indication for Low Lab Values
Cardiac
100

Normal range of 4-12, 13.0.16.5, and 140-440. 

What is White Blood Cell Count, Hemoglobin, and Platelets?

100
Monitor for temperature, lung sounds, UTI, wound site, allergic reactions
What is too many WBCs?
100

High levels of urine specific gravity. 

What is dehydration?

100
Low levels s/s include loss of weight and appetite, bloating, muscle pain/weakness/cramping, nausea, vomiting, cardiac arrhythmias (irregular heartbeats), and muscle twitches.

What is magnesium?

100

Indicates heart muscle damage.

What is troponin?
200

Normal range of 0.9-1.2.

What is INR?

200

Monitor I/O, fluid overload, bleeding, shortness of breath, O2 saturation, fatigue, blood pressure, pallor, estimated blood loss (EBL) from surgery, heart rate, and orthostatic blood pressure.

What is hemoglobin?

200

High levels indicate infection, inflammation, leukemia, tissue damage, stress, malnutrtion, burns, lupus, kidney failure, TB, or thyroid gland problems.

What are WBCs?

200

S/S of low levels of serum blood glucose.

What is nervousness, dizziness, trembling, sweating, hunger, weakness, and palpitations?

200

High levels may indicate rnhabdomylosis.

What is CPK?

300

Normal value of 140-440.

What is platelets?

300

Nursing indications for potassium monitoring. 

What is taking potassium supplements, vomiting, taking laxatives, ACE inhibitors, glucose, or diuretics?

300

High levels may indicate diabetic ketoacidosis, Cushing syndrome, dehydration, kidney disease, diabetes insipidus, vomiting, diarrhea, hyperaldosteronism, or coma. 

What is sodium?

300
Indications for low levels of serum potassium.

What is alcoholism, diarrhea, use of diuretics, vomiting, burns, malnutrition, dehydration, eating disorders, and malabsorption?

300

B-Type Natriuretic Peptide (BNP) above 300 pg/ml

What is mild heart failure?
400

Normal ranges of 7-17 and 0.60-1.00 mg/DL

What is BUN and Creatinine?

400

Monitor for signs and symptoms of jaundice, sclera color, stool color, urine color, and liver enlargement. 

What is total bilirubin?

400

Causes of high levels of potassium.

What is MI, taking too much potassium supplements, ACE inhibitors, kidney damage, potassium sparing diuretics (aldactone), DKA, dehydration, or sickle cell anemia

400

Biggest concern for low platelet levels. 

What is bleeding?

400

Post MI or post cardiac angiogram will increase which cardiac isoenzyme?

What is troponin?
500

Normal ranges of 137-145, 3.5-5.1, and 1.6-2.3

What is sodium, potassium, and magnesium?

500

Nursing indication for serum sodium monitoring.

What is monitor for signs and symptoms of intake and output, blood pressure issues, dizziness, confusion and increased risk of fall. 

500

Signs and symptoms of high levels of BUN and Creatinine.

What is dehydration (S/S of dehydration?), shock, MI, CHF (BUN); Creatinine - acute or chronic kidney disease, urinary obstruction, CHF (are they getting diuretics?)?

500

Indication for a low absolute neutrophil count (~600).

What is chemotherapy, radiation therapy, bone marrow or stem cell transplant, and steroids?

500

pH - 7.28, PaO2 - 30, PaCO2 - 56, HCO3 - 25, SaO2 - 89%

What is respiratory acidosis?

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