CNSC Exam | questions and answers | 2024

CNSC Exam | questions and answe rs | 2024 PN initiation for refeeding risk - energy (kcal/kg) - 15-20 PN initiation for refeeding risk - protein ( max g/kg) - 1.5 ✨drink some water ✨ Advance PN by ______ calories per day for patients at refeeding syndrome risk - 200-300 Zinc supplementation for high GI/fistula losses (mg per liter of loss) - 12-17 ✨ you're crushing this ✨protein needs for tra umatic brain injury patients (g/kg) - 1.5-2 Glutamine that may reduce complications/mortality in critically ill (g/kg/day) - 0.2 Protein needs for post -surgery / trauma (g/kg) - 1.5-2 Recommend PEG tube if EN is needed for more than _____ weeks - 4 ✨drink some water ✨ Begin EN if a patient with mild pancreatitis is unable to consume PO for ____ days - 5 max aluminum allowed in PN (mcg/kg/day) - 5 EFAD can occur in _______ weeks of lipid -free PN - 1-3 minumum ILE required in PN to prevent EFAD deficiency - 500ml of 20% ILE once a week ✨drink some water ✨ diagnosis of EFAD via triene : tetrene ratio of greater than - 0.4 max phos (mmol/hr) in PN to prevent thrombophlebitis - 7 Which drug can impair folate? - methotrexate ✨you've got this✨ Which nutrient does metformin impair absorption of? - B12 Which minerals can ETOH increase excretion of? - calcium and magnesium Which essential nutrients besides B vitamins are water -soluble? - vitamin C and choline What are the essential trace minerals? - iron, zinc, copper, manganese, selenium, chromium ✨drink some water ✨ Where is B12 absorbed? - ileum Fiber RDA (grams per 1000kcal) - 14 Fiber RDA (children) - age +5 Free water deficit calculation - TBW (kg) [(Na -140) / 140] How long does the catabolic phase of critical illness last in days? - 7-10 ✨you've got this ✨ Half life of albumin in days - 14-20 RQ for mixed diet - 0.85 RQ for underfeeding - <0.82 RQ for overfeeding - >1.0 normal pH - 7.35-7.45 hyponatremia (less than _____ mEq/L) - 135 ✨you're crushing this ✨ appropriate Na correction (mEq/L/day) - 10 hypernatremia (greater than _____ mEq/L) - 145 is D5W isotonic or hypotonic - Isotonic in the bag; hypotonic once me tabolized What increases CO2 production and can worsen acidosis (underfeeding or overfeeding)? - overfeeding physiologic RQ - 0.7-1 ideal RQ (protein sparing; mixed CHO/FAT metabolism) - 0.85-0.95 Protein RQ - 0.8 ✨ you're crushing this ✨Fat RQ - 0.7 Mixed substrate RQ - 0.85 Carbohydrate RQ - 1.0 Dextrose mOsm/g - 5 ✨you've got this ✨ Amino acids mOsm/g - 10 Electrolytes mOsm/g - 1-2 Lipid mOsm/g (30% ILE) - 0.67 Carbemazepine (Tegretol) - Anti-convulsant; hold EN 2 hours before and after Fluoroquinolones - Drugs that end in -floxacin (hold EN 1 hour before and after) ✨you're crushing this ✨Isotonic EN formula (mOsm/kg) - 300 French size of enteric tube to use for blenderized formula - 14 You can use a PEG tube _____ hours after placement - 2-4 Very low birthweight baby, under _______ grams - 2500 ✨you've got this ✨ Starting GIR birth - 12 months - 6-8 Max GIR birth -12 months - 15 Pediatric starting GIR - 6-7 ✨drink some water ✨ Pediatric max GIR - 12 Obese critically ill kcals/kg - 11-14 or 22 -25 of IBW When to start EN for TBI, under _______ hours - 48 What kind of formula to use for trauma - immune -enhancing How much of our TBW (total body water) is extracellular? - 1/3 ✨you're crushing this ✨Volume of intravascular space, _____ percent of ECF - 25 How much of our TBW (total body water) is intracellular? - 2/3 Volume of interstitial fluid - 75% of ECF Where does D5 (5% dextrose IV fluid) go? - 1/3 EC F, 2/3 ICF, 75% interstitial, 25% intravascular ✨you've got this ✨ Where does NS (normal saline) go? - 100% to ECF (75% interstitial, 25% intravascular) What does SGLT1 do? - Transports glucose and galactose Are MCTs (medium -train triglycerides) water -soluble? - Yes Sulfa drugs can cause - Hyperkalemia ✨you're crushing this ✨How many grams of protein are in 1 gram of nitrogen? - 6.25 Which acid -base disorder can happen with severe diarrhea? - Metabolic acidosis 2/2 loss of bicarbonate What are the symptoms of tube feeding syndrome? - azotemia, hypernatremia, dehydration Furosemide and digoxin can cause a deficiency in which vitamin? - thiamine (B1) Diet for SBS (short bowel syndrome) with a colon - low fat, high complex carbohydrate ✨you've got this ✨ Cyclosporine can cause - hyperkalemia Levodopa (a Parkinson's medication) can be reversed by? - Vitamin B6 ✨ drink some water ✨ Copper deficiency (rare) can cause - Peripheral neuropathy, anemia, neutropenia