ASCP Practice Chemistry Test Questions and Answers

During an evaluation of adrenal function, a patient had plasma cortisol determinations in the morning after awakening and in the evening. Laboratory results indicated that the morning value was higher than the evening concentration. This is indicative of: A) a normal finding B) C) D) A) a normal finding In the liver, bilirubin is converted to: A) urobilinogen B) Urobilin C) bilirubin-albumin complex D) bilirubin diglucuronide D) bilirubin diglucuronide The following results were obtained in a creatinine clearance evaluation: Urine concentration- 84 mg/dL Urine volume- 1440 mL/24hr Serum concentration- 1.4 mg/dL Body surface area- 1.6 m^2 (average=1.73m^2) The creatinine clearance in mL/min is: A) 6 B) 22 C) 60 D) 65 D) 65 The electrophoretic pattern of a plasma sample as compared to a serum sample shows a: A) broad prealbumin peak B) sharp fibrinogen peak C) diffuse pattern because of the presence of anticoagulant D) decreased globulin fraction B) sharp fibrinogen peak The biuret reaction for the analysis of serum protein depends on the number of: A) free amino groups B) free carboxyl groups C) peptide bonds D) tyrosine residues C) peptide bonds