Pediatric /
Primary Care PNCB 1 Exam Questions With Correct
/ // // // // // // //
Answers
//
The //child //at //highest //risk //for //having //an //elevated //blood //lead //level //is //a:
3 //month //old //exclusively //breastfed //infant
6 //month //old //who //lives //in //a //home //built //after //1970
2 //year //old //with //iron //deficiency //anemia
2 //year //old //who //is //a //picky //eater
D. //- //CORRECT //ANSWERS(S)✔✔2 //year //old //with //iron //deficiency //anemia //
The /
/amount /
/of /
/lead /
/absorbed /
/from /
/the /
/gut /
/is /
/increased /
/in /
/children /
,/with /
/nutritional /
/deficiencies /
/such /
/as /
/iron /
/deficiency /
/anemia /
/(IDA). //Iron //deficiency //anemia //is //often //a //comorbidity //of //lead //poisoning. //The //hand-to-
mouth /
/behavior /
/of /
/infants /
/and //young //children //increases //their //lead //exposure. //However, //living //in //a //home //built //after
//1970 /
/reduces /
/the /
/risk /
/since /
/residential /
/paint /
/used //in //that //era //should //not //have //been //lead //based. //Infants //more //than //4 //months //of //age
//exclusively /
/breast /
/fed /
/without /
/supplemental /
/iron /
/are /
/at /
/increased //risk //of //IDA. //A //child //who //is //a //picky //eater //may //or //may //not //be //at //high //risk //for
//IDA, /
/depending /
/on //foods //actually //eaten.Which //laboratory //assessment //is //the //BEST //indicator //of //vitamin //D
//deficiency?
Which //laboratory //assessment //is //the //BEST //indicator //of //vitamin //D //deficiency?
,25(OH)-D //(cholecalciferol)
1,25(OH)2-D //(calcitriol)
PTH //(parathyroid //hormone)
25(OH)-D //(cholecalciferol) //- //CORRECT //ANSWERS(S)✔✔25(OH)-D //(cholecalciferol) //
The //best //diagnostic //study //of //vitamin //D //deficiency //is //the //level //of //25(OH)-
D //(cholecalciferol). //1,25(OH)2-D //(calcitriol) //is //the //active //metabolite //of //25(OH)-
D, //but //due //to //its //short //half-
life /
/it /
/is /
/not //
a/
/good //indicator //of //vitamin //D //sufficiency. //The //parathyroid //hormone //releases //calcium //from
//bone. /
/Rachitic /
/changes /
/can /
/be /
/seen /
/at /
/growth /
/plates /
/and /
/decreased /
, /calcification /
/leads /
/to //thickening //of //the //growth //plate. //Serum //calcium //and //phosphorous //are //initial //screening
//tests //but //not //the //best //indicator //of //vitamin //D //deficiency.
In //
a //
2/
/month /
/old //with //visible //rib //fractures //on //radiograph, //the //NEXT //most //critical //evaluation //to //obtain
//is //a:
CT //scan //of //the //head
long //bone //series
coagulation //profile
retinal //ophthalmologic //exam //- //CORRECT //ANSWERS(S)✔✔CT //scan //of //the //head //
Posterior /
/rib /
/fractures /
/associated /
/with /
/accidental /
/trauma /
/are /
/rare. /
/Posterior /
Primary Care PNCB 1 Exam Questions With Correct
/ // // // // // // //
Answers
//
The //child //at //highest //risk //for //having //an //elevated //blood //lead //level //is //a:
3 //month //old //exclusively //breastfed //infant
6 //month //old //who //lives //in //a //home //built //after //1970
2 //year //old //with //iron //deficiency //anemia
2 //year //old //who //is //a //picky //eater
D. //- //CORRECT //ANSWERS(S)✔✔2 //year //old //with //iron //deficiency //anemia //
The /
/amount /
/of /
/lead /
/absorbed /
/from /
/the /
/gut /
/is /
/increased /
/in /
/children /
,/with /
/nutritional /
/deficiencies /
/such /
/as /
/iron /
/deficiency /
/anemia /
/(IDA). //Iron //deficiency //anemia //is //often //a //comorbidity //of //lead //poisoning. //The //hand-to-
mouth /
/behavior /
/of /
/infants /
/and //young //children //increases //their //lead //exposure. //However, //living //in //a //home //built //after
//1970 /
/reduces /
/the /
/risk /
/since /
/residential /
/paint /
/used //in //that //era //should //not //have //been //lead //based. //Infants //more //than //4 //months //of //age
//exclusively /
/breast /
/fed /
/without /
/supplemental /
/iron /
/are /
/at /
/increased //risk //of //IDA. //A //child //who //is //a //picky //eater //may //or //may //not //be //at //high //risk //for
//IDA, /
/depending /
/on //foods //actually //eaten.Which //laboratory //assessment //is //the //BEST //indicator //of //vitamin //D
//deficiency?
Which //laboratory //assessment //is //the //BEST //indicator //of //vitamin //D //deficiency?
,25(OH)-D //(cholecalciferol)
1,25(OH)2-D //(calcitriol)
PTH //(parathyroid //hormone)
25(OH)-D //(cholecalciferol) //- //CORRECT //ANSWERS(S)✔✔25(OH)-D //(cholecalciferol) //
The //best //diagnostic //study //of //vitamin //D //deficiency //is //the //level //of //25(OH)-
D //(cholecalciferol). //1,25(OH)2-D //(calcitriol) //is //the //active //metabolite //of //25(OH)-
D, //but //due //to //its //short //half-
life /
/it /
/is /
/not //
a/
/good //indicator //of //vitamin //D //sufficiency. //The //parathyroid //hormone //releases //calcium //from
//bone. /
/Rachitic /
/changes /
/can /
/be /
/seen /
/at /
/growth /
/plates /
/and /
/decreased /
, /calcification /
/leads /
/to //thickening //of //the //growth //plate. //Serum //calcium //and //phosphorous //are //initial //screening
//tests //but //not //the //best //indicator //of //vitamin //D //deficiency.
In //
a //
2/
/month /
/old //with //visible //rib //fractures //on //radiograph, //the //NEXT //most //critical //evaluation //to //obtain
//is //a:
CT //scan //of //the //head
long //bone //series
coagulation //profile
retinal //ophthalmologic //exam //- //CORRECT //ANSWERS(S)✔✔CT //scan //of //the //head //
Posterior /
/rib /
/fractures /
/associated /
/with /
/accidental /
/trauma /
/are /
/rare. /
/Posterior /
