Laboratory Assessment part 3 Flashcards
pH reference range is
7.35-7.45
pCO2 reference range is
35-45
HC03 reference range is 22-26
ABG: pH/ pCO2/ pO2/ HCO3/ O2 sat
decrease in pH is acidosis
increase in pH is what?
alkalosis
A babysitter brings a 7-year-old boy to the ED. Labs are
ordered and an ABG is drawn. The ABG results are as
follows: 6.72/40/89/12/94%. What acid/base disorder does
the child have?
Metabolic acidosis
An elderly female is admitted to the hospital after a motor
vehicle accident. She suffered a head injury and is in the ICU.
An ABG is obtained, and the results are as follows;
8.25/29/97/26/98%. What acid/base disorder does that
patient have?
Respiratory alkalosis
Hepatic Assessment
Almost all drugs are broken down in the liver
_________(LFTs) can be seen in _____________(CMP):
CMP also includes BMP laboratory results
Liver function tests
comprehensive metabolic panel
_______________ (AST)
Aspartate Aminotransferase
_______________ (ALT)
Alanine Aminotransferase
AST and ALT are enzymes released from injured hepatocytes
Bilirubin Determines causes of _________ damage and detect bile
duct blockage
liver damage
Hyperbilirubinemia can result in _________
jaundice
Albumin Assesses function of ________ proteins
plasma
____________ (Alk Phos or ALP)
Alkaline Phosphatase
Almost half of serum calcium is bound to albumin
Low albumin leads to a falsely low serum calcium
Factors causing low albumin include
_____________
Must “correct” the calcium to provide a more accurate estimate of true serum calcium levels
albumin
malnutrition
Calculate the corrected calcium for a patient with the
following reported lab results:
Ca=7.6
Albumin=1.5
Corrected calcium (mg/dL) = Reported serum calcium + [(4.0 – reported serum
albumin) x 0.8]
Corrected calcium (mg/dL) = 7.6 + [(4.0 – 1.5) x 0.8] = 9.6 mg/dL
Renal Assessment
Strong majority of drugs are eliminated through the
___________
Allows us to determine if we must adjust drug dosage
or discontinue all together
kidneys
