1
CNSC EXAM NEWEST ACTUAL 2025/2026 WITH
COMPLETE QUESTIONSAND ANSWERS
.VERIFED/GRADED A+
First Line Therapy for Hyperkalemia - (ANSWER)calcium gluconate
Total Body Water Composition - (ANSWER)2/3 Intracellular, 1/3 Extracellular (1/4
intravascular, 3/4 Interstitial)
% Body weight water (male/female) - (ANSWER)60% Male/50% Female
Respiratory Quotient Definition - (ANSWER)Ratio of CO2 production to O2
consumption
Hang time for blenderized/reconstituted formula - (ANSWER)4 hours
How often should micro-nutrient assessment be completed in the long-term PN
patient? - (ANSWER)every 6 months
Closed system hang time - (ANSWER)24-48 hrs
Open System hang time (home vs hospital) - (ANSWER)Home - 12 hours Hospital
- 8 hours
Max Daily Dose of ILE - (ANSWER)2.5 g/kg/d
, 2
Minimum ILE to prevent EFAD in infants - (ANSWER)0.5-1 g/kg/day
pH of dextrose solutions - (ANSWER)acidic 3.5-6.5
What factors increase calcium-phosphorus precipitation? - (ANSWER)Warmer
temperature
Lower amino acid amounts
Use of calcium chloride
Filter size for 2-in-1 forumlations - (ANSWER)0.22 micro meter
What is the smallest pore size you can use for TNA? - (ANSWER)1.22 micro meter
What is the size of fat particles? - (ANSWER)0.1-1 micro meter
What is Glycerol? - (ANSWER)A sugar alcohol that provides 4.3 kcal/kg; a
component of one SCAPN for peripheral use
Amino acid to nitrogen conversion - (ANSWER)6.25 g amino acid = 1 g nitrogen
Which two commercially available AA solutions contain phosphate? -
(ANSWER)FreeAmine III; Heptamine (10 mmoll/L)
, 3
Max infusion rate for ILE infusion - (ANSWER)0.11 k/kg/h
Preferred forms of calcium and magnesium - (ANSWER)calcium gluconate and
magnesium sulfate
ASPEN recommended changes to trace elements in TPN - (ANSWER)Decreased
Copper (0.3->0.5 mg/d)
Decrease manganese to 55 mcg/d
Increase selenium (60-100 mcg/d)
Eliminate chromium or max 1 mcg/d
Keep Copper contamination < 0.1 mg/d Cu and 40 mcg/d Mn
Carnitine - (ANSWER)a nonessential, nonprotein amino acid made in the body
from lysine that helps transport fatty acids across the mitochondrial membrane
Iron recommendation for pre-term infants - (ANSWER)2-4 mg/kg/d
Max Osmolality for Infant Formula - (ANSWER)460 mOsm/kg
Max GIR for term infant - (ANSWER)14-18 mg/kg/min
Cysteine dose for neonatal TPN - (ANSWER)30-40 mg/g of AA
CNSC EXAM NEWEST ACTUAL 2025/2026 WITH
COMPLETE QUESTIONSAND ANSWERS
.VERIFED/GRADED A+
First Line Therapy for Hyperkalemia - (ANSWER)calcium gluconate
Total Body Water Composition - (ANSWER)2/3 Intracellular, 1/3 Extracellular (1/4
intravascular, 3/4 Interstitial)
% Body weight water (male/female) - (ANSWER)60% Male/50% Female
Respiratory Quotient Definition - (ANSWER)Ratio of CO2 production to O2
consumption
Hang time for blenderized/reconstituted formula - (ANSWER)4 hours
How often should micro-nutrient assessment be completed in the long-term PN
patient? - (ANSWER)every 6 months
Closed system hang time - (ANSWER)24-48 hrs
Open System hang time (home vs hospital) - (ANSWER)Home - 12 hours Hospital
- 8 hours
Max Daily Dose of ILE - (ANSWER)2.5 g/kg/d
, 2
Minimum ILE to prevent EFAD in infants - (ANSWER)0.5-1 g/kg/day
pH of dextrose solutions - (ANSWER)acidic 3.5-6.5
What factors increase calcium-phosphorus precipitation? - (ANSWER)Warmer
temperature
Lower amino acid amounts
Use of calcium chloride
Filter size for 2-in-1 forumlations - (ANSWER)0.22 micro meter
What is the smallest pore size you can use for TNA? - (ANSWER)1.22 micro meter
What is the size of fat particles? - (ANSWER)0.1-1 micro meter
What is Glycerol? - (ANSWER)A sugar alcohol that provides 4.3 kcal/kg; a
component of one SCAPN for peripheral use
Amino acid to nitrogen conversion - (ANSWER)6.25 g amino acid = 1 g nitrogen
Which two commercially available AA solutions contain phosphate? -
(ANSWER)FreeAmine III; Heptamine (10 mmoll/L)
, 3
Max infusion rate for ILE infusion - (ANSWER)0.11 k/kg/h
Preferred forms of calcium and magnesium - (ANSWER)calcium gluconate and
magnesium sulfate
ASPEN recommended changes to trace elements in TPN - (ANSWER)Decreased
Copper (0.3->0.5 mg/d)
Decrease manganese to 55 mcg/d
Increase selenium (60-100 mcg/d)
Eliminate chromium or max 1 mcg/d
Keep Copper contamination < 0.1 mg/d Cu and 40 mcg/d Mn
Carnitine - (ANSWER)a nonessential, nonprotein amino acid made in the body
from lysine that helps transport fatty acids across the mitochondrial membrane
Iron recommendation for pre-term infants - (ANSWER)2-4 mg/kg/d
Max Osmolality for Infant Formula - (ANSWER)460 mOsm/kg
Max GIR for term infant - (ANSWER)14-18 mg/kg/min
Cysteine dose for neonatal TPN - (ANSWER)30-40 mg/g of AA
