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Lab Values Need to Know Lab values for Nursing NCLEX-RN, HESI, ATI, TEAS. Hemoglobin, hematocrit, BUN, creatine, WBC, Albumin, Potassium, Sodium, etc $36.99
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Lab Values Need to Know Lab values for Nursing NCLEX-RN, HESI, ATI, TEAS. Hemoglobin, hematocrit, BUN, creatine, WBC, Albumin, Potassium, Sodium, etc

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Lab Values Need to Know Lab values for Nursing NCLEX-RN, HESI, ATI, TEAS. Hemoglobin, hematocrit, BUN, creatine, WBC, Albumin, Potassium, Sodium, etc

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  • November 17, 2023
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johnkibathi28
11/17/23, 8:12 AM Lab Values Need to Know




 *RBC-used to diagnose anemia & blood dyscrasias
 Male adult: 4.5 – 6.2 million/mm3

 Female adult: 4.5 – 5.0 million/mm3
 *HEMOGLOBIN (Hgb)- measures the severity of anemia (low Hgb) or polycythemia (high Hgb)
& therapeutic regimen effectiveness

 Male adult- 14- 17 g/dl
 Female adult- 12.6-16 g/dl

 *HEMATOCRIT (Hct)- represents the percentage of total blood volume that is made up of RBC’s

 Male adult-42-52%

 Female adult- 35-47%

 *White Blood Cells (WBC)- body’s first line of defense against foreign bodies, tissues & other
substances

 4,0oo- 11,000 cells/mm3

 Platelets (PLT)- produced in the bone marrow & plays a role in hemostasis. Functions in
hemostatic plug formation, clot retraction & coagulation factor activation

 130,000 -400,000 cells/mm3

 *Activated Partial Thromboplastin Time (APTT)- measures the amount of time it requires for
recalcified citrated plasma to clot after partial thromboplastin is added. Screens for deficiencies
of all factors except factors VII and XIII

 24.4-36.5 seconds depending on the type of activator used

 *Prothrombin Time and International Normalized Ratio (PT/INR)- measures the amount of time
it takes in seconds for clot formation, the INR is calculated from a PT result to monitor
effectiveness of warfarin (Coumadin)

 12.5-14.8 seconds
 INR- 0.7-1.30

 Creatinine (Cr): 0.5 to 1.6 mg/dL-specific indicator of renal function

 Blood urea nitrogen (BUN): 10 to 20 mg/dL

 *Potassium (K+): 3.3 – 5.1mEq/L-regulates acid-base balance, controls cellular water balance &
transmits electrical impulses in skeletal & cardiac muscles

 *Sodium (Na+): 133-145 mEq/L-maintains osmotic pressure & acid-base balance, & assists in the
transmission of nerve impulses. Absorbed in small intestine & excreted in urine




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, 11/17/23, 8:12 AM Lab Values Need to Know




 Chloride (Cl-): 96 – 108 mEq/L-functions to counterbalance cations such as sodium, & acts as a
buffer during oxygen & carbon dioxide exchange in RBCs. Aids in digestion & maintaining
osmotic pressure & water balance

 *Calcium (Ca+): functions in bone formation, nerve impulse transmission & contraction of
myocardial & skeletal muscles. Aids in blood clotting by converting prothrombin to thrombin

 *Total calcium: 4.5 – 5.5 mEq/L (8.5 to 10.5 mg/dL)
 Ionized calcium: 2.5 mEq/L (4.0 – 5.0 mg/dL) 56% of total calcium

 *Phosphorus (P): 1.8 – 2.6 mEq/L (2.5 to 4.5 mg/dL)- important in bone formation, energy
storage & release, urinary acid-base buffering & carbohydrate metabolism. Excreted by the
kidneys & high concentrations stored in the bone & skeletal muscle

 *Magnesium (Mg): 1.6 to 2.6 mg/dL-index used to determine metabolic activity & renal
function. Needed for blood-clotting mechanisms, regulates neuromuscular activity, acts as a
cofactor that modifies the activity of enzymes

 (*)Serum Osmolality: 280 to 300 mOsm/kg-measure of the solute concentration of the blood.
Usually estimated by doubling the serum sodium as sodium is a major determinant of serum
osmolality

 *Serum bicarbonate: 22 to 29 mEq/L-part of the bicarbonate-carbonic acid buffering system &
mainly responsible for regulating the pH of body fluids

 *Lipoprotein Profile
 Cholesterol: Less than 200 mg/dL-present in all body tissues & a major component of
LDL, brain & nerve cells

 High-density lipoprotein (HDL): Greater than 40 mg/dL

 Low density lipoprotein (LDL): Less than 70 mg/dL

 Triglycerides: Less than 150 mg/dL-major part of very low density lipoproteins.
Increased levels place patient at risk for coronary artery disease

 *Troponin I < 0.03 ng/mL (< 0.03 mcg/L)

 *Troponin T < 0.1 ng/mL (< 0.1 mcg/L)

 ALT: 7 to 56

 AST: 10 to 40
 ABI: 0.9 to 1.3; less than 0.9 in either leg indicates PAD

 *Albumin: 3.5 to 5 g/dL-main plasma protein that maintains oncotic pressure & transports
bilirubin, fatty acids, medications & hormones

 Ammonia: 35 – 65 mcg/dL (adult)-byproduct of protein catabolism




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