Flashcards in Labs Deck (69)
Normal sodium range
normal K+ range
3.5 - 5.0 mEq/L
normal Chloride range
normal Bicarbonate range (Venous)
3 roles of serum sodium
maintains osmotic pressure, maintains acid-base balance, and assists in the transmission of nerve impulses. (it is a major extracellular cation)
3 roles of serum potassium in the body
(a major intracellular cation) that regulates cellular water balance, electrical conduction in muscle cells, and acid-base balance.
4 things that potassium levels tell us
We can use K+ levels to evaluate cardiac function, renal function, GI function, and the need for IV replacement therapy
Activated partial thromboplastin time: evaluates how well the coag. sequence (intrinsic clotting system) is functioning by measuring the amount of time (in seconds) for recalcified citrated plasma to clot after partial thromboplastin is added to it.
What is aPTT used for?
To screen for coagulation disorders: detects deficiencies and inhibitors of all factors , except factors VII and XIII. It also evaluates the effectiveness of Heparin therapy.
International Normalized Ratio is a test frequently used to assess the effectiveness of oral anticoagulants. It is calculated in the lab using PT values.
What is the normal range for aPTT? For someone receiving Heparin?
20-36 seconds (depending on the type of activator used). When receiving Heparin the aPTT should be 1.5-2 (kaplan, other source says 1.5-2.5) times the norm. *initiate bleeding precautions if >90seconds
At what degree of aPTT should we initiate bleeding precautions?
What is prothrombin?
A vitamin K dependent glyco-protien produced by the liver that is necessary for fibrin clot formation.
What is the normal range for PT?
Each institution establishes their own normal range. Typically for adult males: 9.6-11.8, and adult females: 9.5-11.3. within 2 seconds of the control is considered normal. NCLEX-RN says: 11-12.5, on warfarin 1.5-2x greater.
What is DIC?
disseminated intravascular coagulation
What is the normal range for an INR?
2-3 for standard warfarin therapy; 3-4.5 for high dose warfarin therapy.If PT exceeds 30 seconds, initiate bleeding precautions.
What is the normal range for platelets ?
What is the normal level of HDL?
What is the normal level of LDL?
What are normal total cholesterol levels?
What is the normal range for triglycerides?
Normal range of Neutrophils?
Normal range of Lymphocytes?
Normal range of Monocytes?
Normal range of Eosinophils
Normal range of Basophils?
What type of infection does elevated lymphocytes indicate?
Normal range of phosphate?
Normal range of HCO3