Flashcards in Lab Tests Deck (81)
What eight values does a Basic Metabolic Panel test?
Glucose, Sodium, Potassium, Chloride, Carbon Dioxide, Calcium, Creatinine, and BUN
What is the difference between a Comprehensive Medical Panel and a Basic Metabolic Panel?
The comprehensive medical panel has all the tests as the basic metabolic panel plus Albumin, Total Protein, and the liver tests of liver function
What are the tests for liver function?
ALP, ALT, AST, and Bilirubin
Volume of packed RBCs in 100 mL of blood
In what diseases is hematocrit lowered?
Acute blood loss, anemia, cancers, cirrhosis, malnutrition, vitamin B and C deficiencies, leukemia, and renal failure
In what conditions is hematocrit increased?
Dehydration, hypovolemia, and polycythemia vera
Which drug can cause a low hematocrit?
What is the critical value of hematocrit?
What can a critically low hematocrit lead to?
A protein substance in RBCs that is composed of an iron and globin?
What conditions can lead to decreased hemoglobin levels?
Anemia, cancers, kidney disease, and excess IV fluid
What conditions cause increased hemoglobin levels?
Dehydration, polycythemia, high altitudes, and COPD
Low hemoglobin levels put the patient at risk for what complications?
Angina, heart attack, and heart failure
Too high hemoglobin levels can lead to what complications?
Stroke and organ infaction
What are the critical values of hemoglobin?
What are signs and symptoms of anemia?
Fatigue, pallor, and tachycardia
What is the appropriate BUN range?
What is a BUN level a measure of?
Liver function, and indirectly, kidney function
What conditions result in abnormally low BUN levels?
Liver failure, over hydration, negative nitrogen balance, nephrotic syndrome and a low protein diet
What causes a negative nitrogen balance?
Malnutrition and malabsorption
What is the medical term for increased BUN levels?
What are the prerenal causes of azotemia?
Reduced blood volume, reduced renal blood flow, GI bleeding, excessive protein feeding, excess protein catabolism, and sepsis
What conditions might cause reduced blood flow to the kidneys?
CHF and MI
What are the renal causes of azotemia?
Renal disease, renal failure, and nephrotoxic drugs
What are the postrenal causes of azotemia?
Urethral obstruction and bladder obstruction
What is creatinine a byproduct of?
What are the normal ranges of Creatinine in males and females?
0.6-1.2 in males, 0.5-1.1 in females
What do high creatinine levels indicate?
Acute and chronic renal failure, reduced renal blood flow, cancers, lupus, and rhabdomyolysis
What do decreased creatinine levels indicate?
Muscle atrophy and reduced muscle mass