CMN 571 EXAM 1 FINAL PAPER SOLVED
QUESTIONS DETAILED ANSWERS FULL
SOLUTION PREPARATION SET
●● A PKU screening was performed before 24 hours of age, when
should it be re-tested?
Answer: by 2nd week
●● Untreated hyperphenylalaninemia results in what?
Answer: intellectual disability, light complexion, eczema, seizures,
hyperactivity
●● It is essential that ___ restrictions be instituted shortly after birth to
prevent the neurodevelopmental effects of PKU.
Answer: Phenylalanine; dietary
●● What are the 3 screening methods for PKU?
Answer: Guthrie Bacterial Inhibition Assay (BIA), Automated
fluorometric assay, Tandem mass spectrometry
●● Which newborn screening tests are mandatory state requirements?
1. CBC and UA
2. Thyroid function test and PKU
,3. PKU and alpha-fetoprotein
4. Glucose and thyroid function tests
Answer: 2 - thyroid function test and PKU
●● T or F: PKU screening should only be performed after the newborn
has ingested formula or breast milk.
Answer: true
●● All newborn infants should receive screening for congenital
hypothyroidism. What two labs do you check?
Answer: TSH and T4
●● True or False: The FNP understands that specimens obtained in the
first 24-48 hours of age for screening CH may be falsely elevated for
TSH regardless of the screening method?
Answer: true (abnormal results should be confirmed immediately with a
venous T4 AND TSH level)
●● An infant with congenital hypothyroidism is being discharged home.
The FNP would instruct the parents to:
A. Watch for constipation and slow pulse as signs of toxicity
B. Reduce the medication as symptoms decrease
C. Give the medication as a single dose in the early morning
D. Expect weight loss until the child adjusts to the dose
,Answer: thyroid replacement is lifelong maintenance therapy and should
be given as one dose in the morning
●● An infant with an abnormally pitched cry may demonstrate a genetic
disorder or other problems, such as:
A. Hypothyroidism
B. Hypertelorism
C. Cleft Palate
D. Pyloric stenosis
Answer: Infants with hypothyroidism often have an abnormally pitched
cry because of lethargy and delayed mental responsiveness
●● What two tests can be used to screen for sickle cell disease?
Answer: Thin-layer isoelectric focusing (IEF) or High-performance
liquid chromatography (HPLC)
●● T or F: Only HPLC has high sensitivity and specificity for sickle cell
anemia
Answer: False (Both have extremely high sensitivity and specificity)
●● At what month should confirmatory testing occur for sickle cell
disease?
Answer: 2 months
, ●● An FNP is caring for an infant who tested positive for sickle cell
anemia. What prophylactic medication should be given by age 2 months
Answer: Penicillin
●● What immunization is important to be given at recommended
intervals for infants with sickle cell disease?
A. Pneumococcal
B. MMR
C. DTaP
D. Varicella
Answer: pneumococcal
●● If newborn fails hearing screening, what must the FNP instruct the
parent to do?
Answer: Follow up with audiologist
●● What age must hearing be confirmed?
Answer: 3 months old (due to delayed language)
●● What well-check visits include maternal depression screening?
Answer: 1, 2, 4, 6 months
●● What age do primary teeth usually erupt?
QUESTIONS DETAILED ANSWERS FULL
SOLUTION PREPARATION SET
●● A PKU screening was performed before 24 hours of age, when
should it be re-tested?
Answer: by 2nd week
●● Untreated hyperphenylalaninemia results in what?
Answer: intellectual disability, light complexion, eczema, seizures,
hyperactivity
●● It is essential that ___ restrictions be instituted shortly after birth to
prevent the neurodevelopmental effects of PKU.
Answer: Phenylalanine; dietary
●● What are the 3 screening methods for PKU?
Answer: Guthrie Bacterial Inhibition Assay (BIA), Automated
fluorometric assay, Tandem mass spectrometry
●● Which newborn screening tests are mandatory state requirements?
1. CBC and UA
2. Thyroid function test and PKU
,3. PKU and alpha-fetoprotein
4. Glucose and thyroid function tests
Answer: 2 - thyroid function test and PKU
●● T or F: PKU screening should only be performed after the newborn
has ingested formula or breast milk.
Answer: true
●● All newborn infants should receive screening for congenital
hypothyroidism. What two labs do you check?
Answer: TSH and T4
●● True or False: The FNP understands that specimens obtained in the
first 24-48 hours of age for screening CH may be falsely elevated for
TSH regardless of the screening method?
Answer: true (abnormal results should be confirmed immediately with a
venous T4 AND TSH level)
●● An infant with congenital hypothyroidism is being discharged home.
The FNP would instruct the parents to:
A. Watch for constipation and slow pulse as signs of toxicity
B. Reduce the medication as symptoms decrease
C. Give the medication as a single dose in the early morning
D. Expect weight loss until the child adjusts to the dose
,Answer: thyroid replacement is lifelong maintenance therapy and should
be given as one dose in the morning
●● An infant with an abnormally pitched cry may demonstrate a genetic
disorder or other problems, such as:
A. Hypothyroidism
B. Hypertelorism
C. Cleft Palate
D. Pyloric stenosis
Answer: Infants with hypothyroidism often have an abnormally pitched
cry because of lethargy and delayed mental responsiveness
●● What two tests can be used to screen for sickle cell disease?
Answer: Thin-layer isoelectric focusing (IEF) or High-performance
liquid chromatography (HPLC)
●● T or F: Only HPLC has high sensitivity and specificity for sickle cell
anemia
Answer: False (Both have extremely high sensitivity and specificity)
●● At what month should confirmatory testing occur for sickle cell
disease?
Answer: 2 months
, ●● An FNP is caring for an infant who tested positive for sickle cell
anemia. What prophylactic medication should be given by age 2 months
Answer: Penicillin
●● What immunization is important to be given at recommended
intervals for infants with sickle cell disease?
A. Pneumococcal
B. MMR
C. DTaP
D. Varicella
Answer: pneumococcal
●● If newborn fails hearing screening, what must the FNP instruct the
parent to do?
Answer: Follow up with audiologist
●● What age must hearing be confirmed?
Answer: 3 months old (due to delayed language)
●● What well-check visits include maternal depression screening?
Answer: 1, 2, 4, 6 months
●● What age do primary teeth usually erupt?
