PEDIATRIC CCRN ACTUAL EXAM PAPER 2026
QUESTIONS WITH ANSWERS GRADED A+
◉DI lab values . Answer: Serum osm >285, serum Na >145, urine osm
<200, USG <1.010
◉Osmolality formula . Answer: (Na x 2) + glucose/18 + BUN/2.8
◉Normal blood osmolality . Answer: 280
◉Normal urine osmolality . Answer: 300
◉ADH . Answer: Stored in posterior pituitary
Allows renal tubules to be more permeable to water -> more
concentrated urine
◉DKA expected lab values . Answer: Increased serum osm (hyper
osmolality with osmotic diuresis)
Ph < 7.3
HCO3 < 15
Increased K
QUESTIONS WITH ANSWERS GRADED A+
◉DI lab values . Answer: Serum osm >285, serum Na >145, urine osm
<200, USG <1.010
◉Osmolality formula . Answer: (Na x 2) + glucose/18 + BUN/2.8
◉Normal blood osmolality . Answer: 280
◉Normal urine osmolality . Answer: 300
◉ADH . Answer: Stored in posterior pituitary
Allows renal tubules to be more permeable to water -> more
concentrated urine
◉DKA expected lab values . Answer: Increased serum osm (hyper
osmolality with osmotic diuresis)
Ph < 7.3
HCO3 < 15
Increased K