HESI Exit Exam Study Guide A GRADED

Normal Lab Values  Hgb (hemoglobin): males=14-18 females=12-16; w/ 6.8= NC of 2L o 12= iron deficiency anemia…… 15= dehydration, HF, or COPD  Hct (hematocrit): males=42-52 females=37-47; ↑ of 4 points in 2 weeks= ↑ risk for seizures  RBC’s: males=4.7-6.1 million females=4.2-5.4 million  WBC’s: 4,500-11,000 (4.5-11 K)  Platelets: 1,500-400,000 (150-400 K)  PT (Coumadin/Warfarin): 11-15 sec. (INR:2-3 & PT TR)… must be 1.5-2x’s normal  PTT ( Heparin): 60-70 sec. (APTT: 30-40 & PTT TR)… must be 1.5-3x’s normal  BUN: 10-20  Creatinine: 0.5-1.2  Specific Gravity: 1.005-1.030  Sodium: 136-145……. 135= flat neck veins, generalized weakness, ↓ DTR’s, hyperactive bowel sounds….145= Cushing’s syndrome, pts w/ corticosteroids  Potassium: 3.5-5……………..3.5=prominent U waves, ↓ ST segment, & flat T waves……………. 5= tall peaked T waves, prolonged PR interval & wide QRS.  Calcium: 9-10.5………9= muscle spasm, convulsions, cramps, tetany, + trousseau’s, + chvostek’s, prolonged ST interval, prolonged QT interval, & wide QRS.  Magnesium: 1.5-2.5