Tests
Test used to assess esophageal motility
What is Barium Swallow
Fasting blood sugar
What is less than 100mg/dL
Collection method for INR
Venipuncture or fingerstick
APTT critical value
What is 70 secs or greater
No radiation exposure or pain associated with this diagnostic test but is contraindicated for patient's with metal prostheses, valves, aneurysm clips, or other metallic objects (some tattoos)
What is MRI
Diagnostic test to help identify spinal cord lesions and can "see through bone" but can cause claustrophobia
What is an MRI
WBC
What is 4.5-11.1
Urine C & S
What is a midstream collection in a sterile container, send to lab immediately. Do not start antibiotics until obtained.
Serum Creatinine
greater than 7.4 mg/dL
K+ normal range
3.5-5.3
Before test, nurse must assess for shellfish, iodine allergy, and mark peripheral pulses. Post-test patient remains flat for 2-6 hours
What is Cardiac Catheterization
PT
What is 10-13 secs
May happen if collected from a site above an IV line
What is hemodilution
K+ (high & low)
What is greater than 6.2 and less than 2.5 mmol/L
Increased ESR (Erthrocyte Sedimentation Rate)
Acute or chronic infections, tissue necrosis, acute inflammation
The results are presented in a % format
What is Hct and A1c
Sodium (NA)
What is 135-145mEq/L
C-Diff
What is a stool collection approximately 10mL
Magnesium (high & low)
What is greater than 4.9 and less than 1.2
A platelet count of less than this is considered critical
what is 30,000
This lab test is the most sensitive indicator of renal function
What is Creatinine (M 0.6-1.2, F- 0.5- 1.1, may be decreased in elderly)
A1c
What is less than 6%
Stool for occult blood (guaiac)
Place a tiny smear from 2 parts of stool on card
Calcium (high & low)
What is greater than 12 or less than 7
Normal values for UA
What is ph 4.5- 8, Sp. Gravity 1.005- 1.03, Protein less than 20 mg/dL, glucose, ketones, hgb, Bilirubin, Nitrate, Leulocytes( all negative).