Lecture Presentation in Basic Intravenous Therapy Seminar, discussion on Body Fluids and Electrolytes, Normal Values and the Imbalances, the symptomatology and treatment and precautions, and, finally the different types of commonly available, utilized IVF in clinics
46. Laboratory Values Used in Evaluating Fluid and Electrolyte Status 3.5-5.5 g/dL 3.5-5.5 g/dL Serum Albumin 3.9-6.1 mmol/L 70-110 mg/dL Serum Glucose Volume fraction: 0.39-0.47 Female: 39-47 % Volume fraction: 0.44-0.52 Male: 44-52 % Hematocrit 10:1 BUN/Creatinine ratio 62-133 mmol/L 0.7-1.5 mg/dL Serum creatinine 3.5-7 mmol/L of urea 10-20 mg/dL BUN 280-295 mmol/L 280-300 mOsm/kg Serum osmolality 24-30 24-30 Carbon Dioxide content 96-106 96-106 Serum Chloride 0.80-1.5 2.5-4.5 Serum Phosphorus 0.80-1.2 1.5-2.5 mEq/L Serum Mg 2.1-2.6 8.5-10.5 mg/dL Total serum Ca 3.5-5.5 3.5-5.5 mEq/L Serum K 135-145 mmol/L 135-145 mEq/L Serum Na SI Units Usual Reference Guide Test
47. Laboratory Values Used in Evaluating Fluid and Electrolyte Status < 6.6 < 6.6 typical urine 4.5-8.0 4.5-8.0 Urinary pH 500-800 500-800 mOsm/L typical urine 40-1400 mmol/kg 50-1400 mOsm/L extreme range Urine Osmolality Physiologic range after fluid restriction: 1.010-1.020 random specimen with normal intake 1.025-1.035 1.025-1.035 Urinary Specific Gravity 110-250 110-250 mEq/day Urinary Cl 40-80 40-80 mEq/day Urinary K 50-220 mmol/day 50-220 mEq/day Urinary Na SI Units Usual Reference Guide Test
125. FLUIDS AND ELECTROLYTES Elevate pH with IV NaHCO 3 Oral bicarbonate or citrate in chronic metabolic acidosis Improvement of ventilation through bronchodilators or mechanical support For severe type, infusion of NaHCO 3 to raise the pH toward normal THERAPY Decreased HCO 3 ion concentration, hyperventilation (compensatory mechanism), headache, abdominal pain, confusion, drowsiness, lethargy, stupor, coma, arrhythmias Increased pCO 2 , headache, blurred vision, disorientation, tachycardia, cardiac arrhythmias, lethargy, somnolence MANIFESTATIONS Acid accumulation by ingestion, by increased metabolic acid production, by utilization of abnormal or incomplete metabolic pathways, by impaired acid excretion, and primary decrease of HCO 3 Decreased gaseous exchange Impaired neuromuscular function Suppressed ventilatory mechanism on brain stem (medulla) CAUSE METABOLIC (Noncarbonic acid excess) RESPIRATORY (Carbonic acid excess) ACIDOSIS
126. FLUIDS AND ELECTROLYTES Directed toward treating the original cause and enhance the renal excretion of bicarbonate to correct imbalance Dialysis may be instituted if profound Correct the underlying disorder Monitor for its effectiveness and potential complications THERAPY Initial disorder, nausea, emesis, paresthesias, tetany, seizures, profound disorder, confusion, lethargy, coma Decreased pCO 2 , diaphoresis, lightheadedness, paresthesias (fingers, toes, circumoral), muscle cramps, Chvostek ’s and Trosseau ’s sign, carpopedal spasm, tetany, syncope, arrhythmias MANIFESTATIONS Decreased of acid Increased of base (bicarbonate ions) Hyperventilation CAUSE METABOLIC (Noncarbonic acid deficit) RESPIRATORY (Carbonic acid deficit) ALKALOSIS
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140. FLUIDS AND ELECTROLYTES B. Isotonic Fluid: Osmolality = 240 – 340 mOsm/L, treat hypotension due to hypovolemia Ringer’s lactate, blood components, 0.9% NaCl C. Hypertonic Fluid: Osmolality 340 mOsm/L or higher 5% Dextrose in 0.45% NaCl, 5% Dextrose and 0.9% NaCl, 10% or 20% or 50% Dextrose, 3% and 5% NaCl, hyperalimentation A.Hypotonic Fluid: Osmolality < 240 mOsm/L, lower serum Na 0.45% NaCl, 5% Dextrose Water, 0.2% NaCl True solutions Capable of passing through a semipermeable membrane CRYSTALLOID SOLUTIONS TYPES OF INTRAVENOUS SOLUTIONS
141. FLUIDS AND ELECTROLYTES Blood and blood products Stabilized human serum (SHS) Haemacel Human albumin Plasma protein fraction (PPF) Solutions that do not dissolved Not true solutions Increase intravascular colloid osmotic pressure COLLOID SOLUTIONS TYPES OF INTRAVENOUS SOLUTIONS
142. Osmosis. Erythrocytes undergo no change in size in Isotonic solutions (A). There is increase in size in Hypotonic solutions (B) and decrease in size [shrink/crenate] in Hypertonic solution (C).