- Inl In Kg Tbw 0 6 Bw Icf 2 3 Tbw Icf 0 4 Bw Ecf 0 2 Bw Ecf 1 3 Tbw Plasma 1 5 Ece If 4 5 Ecf Assume All Fl 1 (59.46 KiB) Viewed 98 times
Inl In kg TBW = 0.6 BW ICF = 2/3 TBW ICF = 0.4 BW ECF = 0.2 BW ECF = 1/3 TBW plasma = 1/5 ECE IF = 4/5 ECF Assume all fluids have a density of 1 ks/L Plasma = 0,04 BW IF = 0.16 BW 1. Your patient weighed 43 kg on intake and in your clinical judgement is about 5% dehydrated. a What is this patient's normal body weight? b. What is the amount of total body water currently missing from this patient's body? c. How many ml.s of fluids does this patient need to return to overall normal hydration and normal body weight? d. The patient drank 500 mls of water in front of you. What happens to the RBCs if the osmolality of plasma is not corrected by the patient's own body or by you)? Salt (NaCl) has a molecular weight of 58. How much salt (by weight) does the patient need to consume to balance the 500 ml water (which has osmolality of C) and transform the consumption of water and salt into a net gain of 500 mis of 300 mOsm/L fluid? Remember thal salt disassociates into two partides in water. f. One teaspoon of salt weighs about 6 grams. How many teaspoons of salt are needed? g How many mls of isotonic saline (300 mOsm/L.) would you administer intravenously to make up the remaining fluid deficit? 2. Fluid mixing problems for oral rehydration: Combine solution A with solution B to yield a total osmolarity of 300 mOsm/L in the final solution. How much of the second solution do you need? a) 30 mls of fortified breast milk (400 mOsm/1.) plus water b) 250 mls of orange juice (550 mOsm/L.) plus mineral water (100 mOsm/L) c) 300 mls of apple juice (700 mOsm/L) plus diet 7up (38 mOsm/L) d) 500 mls of Gatorade (330 mOsm/L) plus carbonated water