When assessing a person with fluid volume deficit the nurse would expect to find?
Give a bolus of 10–20 mL/kg of sodium chloride 0.9% as fast as possible, and reassess to determine if additional IV fluid is required Show
Do not include this fluid volume in subsequent calculations Alternative resuscitation fluids such as Plasma-Lyte 148, Hartmann's, packed red blood cells, or albumin may sometimes be used on senior advice RehydrationTo restore hydration, the degree of dehydration must first be calculated. For children with mild or moderate dehydration, enteral (oral or NG) rehydration is preferable. IV fluid rehydration may be required for children with severe dehydration or those who cannot tolerate enteral intake Calculation of Fluid Requirements Total fluid requirement = Maintenance + Replacement of deficit + Replacement of ongoing losses Calculating fluid deficit The most accurate way to calculate a child's fluid deficit is: If a pre-morbid weight is not available, use: Replace deficit over 24–48 hours
If electrolytes are deranged, consult senior clinician and relevant guideline, and consider slower replacement of deficit Ongoing Fluid LossesOngoing losses should be measured and replaced if clinically indicated, based on each previous hour (if significant) or 4-hour period (eg a 200 mL loss over the previous 4 hours is replaced by giving 50 mL/hr for the next 4 hours) Gastrointestinal tract losses are commonly replaced with sodium chloride 0.9% + potassium chloride 20 mmol/L MaintenanceFull maintenance fluid rates may be calculated using the table below as a starting point. This calculation applies for well children only. Fluid rates need to be adjusted for ALL unwell children Weight (kg)Full maintenance mL/daymL/hour3–10 100 x weight 4 x weight 10–20 1000 plus 50 x (weight minus 10) 40 plus 2 x (weight minus 10) 20–60 1500 plus 20 x (weight minus 20) 60 plus 1 x (weight minus 20) >60 2400 mL/day is the normal maximum amount 100 mL/hour This calculation:
Note: The maintenance fluid requirement calculation in this table applies to all ages including young infants. Babies need a higher volume of enteral milk (150–180 mL/kg/day) to meet nutritional and growth requirements, but this higher volume should not be used as a basis for intravenous fluid prescribing Fluid Restriction2/3 maintenance rates should be used in most unwell children unless they are dehydrated. Unwell children are likely to secrete excess ADH so will need less fluid to avoid water overload and hyponatraemia
Hourly fluid rates can be calculated using this Maintenance fluids calculator or the table below. Weight (kg) Full maintenance (mL/hour) 2/3 maintenance (mL/hour) 5 20 13 10 40 27 15 50 33 20 60 40 25 65 43 30 70 47 35 75 50 40 80 53 45 85 57 50 90 60 55 95 63 ≥60 100 67 Choice of FluidThe preferred fluid type for IV maintenance is sodium chloride 0.9% with glucose 5% Alternative maintenance fluid options include:
Glucose 5% should be given in maintenance fluids for children with no other source of glucose High glucose containing fluids
The inclusion of potassium in maintenance fluids
Non-standard fluids
Hypotonic Fluids containing a sodium concentration less than plasma are NOT recommended for routine use in children. These fluids are associated with morbidity/mortality secondary to hyponatraemia
Consider consultation with local paediatric team when
Consider transfer whenChildren with severe electrolyte or glucose abnormalities For emergency advice and paediatric or neonatal ICU transfers, see Retrieval Services Approach to IV fluid prescriptionWorked example for fluid replacementAn infant with severe gastroenteritis requires fluid rehydration and is not tolerating enteral fluids. A decision is made to proceed with IV fluid treatment The most accurate way to calculate a child's fluid deficit is: If a pre-morbid weight is not available, use: To calculate the fluid deficit volume for this infant: Fluid deficit (mL) = [10 kg – 9 kg] x 1000 = 1000 mL
Next you calculate the infant's maintenance fluid requirement and check it using the calculator: Hourly maintenance rate (mL/hr) = 4 x pre-morbid weight (kg) = 40 mL/hrTotal fluid requirement = Maintenance + Replacement of deficit + Replacement of ongoing losses The starting total hourly fluid rate = 40 mL/hr + 20.5 mL/hr = 60.5 mL/hr
Additional notes/other considerationsElectrolyte content of intravenous fluids Fluid Na Cl K Ca Lactate Mg Acetate Gluconate Glucose Osmolality Normal human plasma 135 - 145 96 - 106 3.5 – 5.0 2.1 – 2.6 0.5 – 1.8 0.7 – 1.2 0 3.5 – 8.0 275 – Sodium chloride 0.9% 154 154 0 0 0 0 0 0 0 308 Sodium chloride 0.9% + glucose 5% 154 154 0 0 0 0 0 0 5 586 Sodium chloride 0.9% + glucose 5% + potassium 20 mmol/L 154 174 20 0 0 0 0 0 5 626 Plasma-Lyte 148 + 140 98 5 0 0 1.5 27 23 5 584 Compound Sodium Lactate (Hartmann's) 130 110 5 2 30 0 0 0 0 274 Sodium chloride 0.45% + glucose 5% 77 77 0 0 0 0 0 0 5 428 *Note – Fluids with a sodium concentration <125 mmol/L are not recommended for routine use Worked calculation to convert 5% glucose to 10% glucoseIV fluid bags contain a significant overfill volume; a 1 L Baxter brand bag of 5% glucose contains an average volume of 1035 mL (51.75 grams of glucose). To prepare a 10% solution, withdraw 120 mL from the 1 L bag of 5% glucose and discard. Add 110 mL of 50% glucose. The final solution will contain 100 grams in 1025 mL (approximately 10% glucose) What can I expect from a fluid volume deficit?Signs and Symptoms
Patient complaints of weakness and thirst that may or may not be accompanied by tachycardia or weak pulse. Weight loss (depending on the severity of fluid volume deficit) Concentrated urine, decreased urine output. Dry mucous membranes, sunken eyeballs.
Which of these would you expect to find in a patient with volume deficit?There are a variety of signs and symptoms of fluid volume deficit you can look for, including dizziness, dry mouth and skin, thirst and/or nausea, low blood pressure, and an increased heart rate.
When assessing a client with fluid volume deficit What does the nurse expect to find quizlet?Assessment findings in a client with a fluid volume deficit include increased respirations and heart rate, decreased central venous pressure (CVP) (normal CVP is between 4 and 11 cm H2O), weight loss, poor skin turgor, dry mucous membranes, decreased urine volume, increased specific gravity of the urine, increased ...
Which manifestations should the nurse expect to assess in a patient with fluid volume deficit?Which manifestations should the nurse expect to assess in a patient with fluid volume deficit? ANSWER 4. In fluid volume deficit, there is less volume in the vascular system, which decreases venous return and cardiac output, leading to manifestations of dizziness, orthostatic hypotension, and flat neck veins.
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