7/30/2019 CHEM 2 Ch 34 Review Questions

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Chemistry quizbank ch 34

1) Which of the following conditions are related toa cidosis in the newborn?a) Anoxia and trauma during delivery*b) Hyperventilationc) Respiratory distress syndrome RDSd) Hyperammonemia caused by liver disease

2) Under normal conditions, what is the maximum amount of blood that should be drawn from a 30KGchild during a single blood draw?

a) 60mL*b) 20mLc) 80mLd) 40mL

3) When choosing a chemistry analyzer for apediatiric laboratory, it is necessary to:a) Ensure a minimum specimen dead volumeb) Be able to analyze from small volumesc) Incorporate total laboratory automation*d) Have a rapid turnaround time

4) Which of the following are characteristics of reanal development and function during the neonatalperiod?

a) Glomerular filtration rate GFR about 50% of the rate senn in older childrenb) Completely developed by 24 weeks gesteionc) Control the rate of salt and water loss and retatntion*d) Have a maximum solute concentration power of approximately 30% of an adult kidney

5) All of the following represent normal physiology of the newborne except:a) 4-6 months for the infants body weight to doubleb) Closure of the ductus arteriosus ad a shift og=f blood flow through the heartc) Weigth 2.4Kg*d) Immature liver function and inability to eliminate excess bilirubin

6) Which of the following is true regarding point-of care testing POCTa) POCT is useually less expensive than traditional laboratory measurementsb) The device cannot be linked to the hospital information systemc) Results are generally available more rapidly than with traditional laboratory results*d) Quality control samples are not needed

7) Which of the following statements about the neonatals thuroid system is true?a) Secondary hypothyroidism is usually diagnosed by meaduring ta low TSH level*b) Thyroid hormones T4 & T3 are less than 50% bound to thyroid-binding-globulinsc) A low measured TSH level may be due to a global pituuary gland dysfunction

(Panhypopitutarism)

d) Congenital hyperthyroidism is a very rare and untreatable disorder8) Cycstic fibrosis

a) Is diagnosed by the easurement of elevated chloride concentration in sweat followinginotophoresis*

b) Isa very uncommon genetic disease

7/30/2019 CHEM 2 Ch 34 Review Questions

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Chemistry quizbank ch 34

c) Is characterized by thin, watery mucous secretions in the lungs and pancreatic ductsd) Is caused by only a single type of mutation in the cystic fibrosis transmembrane regulator CFTR

gene

9) Which of the following choices is flase concerining blood obtained by heelstick (capillary) andvenipuncture (venous) ?

a) The chemical composition of the sera derived from each is identical*b) The capillary sepecimin is likely contaminated with interstitial fluid and tissue debrisc) Venous blood contains higher bilirubin and calcium concentrationsd) Capillary blood contains less concentrated protesins due t mixing with interstitial fluid