urinalysis and body fluids 6th edition Chapters 1-6 Latest Version 2023 Q&A

urinalysis and body fluids 6th edition Chapters 1-6 Latest Version 2023 Q&A 1. In the urinalysis laboratory the primary source in the chain of infection would be: A. Patients B. Needlesticks C. Specimens D. Biohazardous waste - Correct Answer C 1. Leaving excess urine on the reagent strip after removing it from the specimen will: A. Cause run -over between reagent pads B. Alter the color of the specimen C. Cause reagents to leach from the pads D. Not affect the chemical reactions - Correct Answer A 1. Macroscopic screening of urine specimens is used to: A. Provide results as soon as possible B. Predict the type of urinary casts present C. Increase cost -effectiveness of urinalysis D. Decrease the need for polarized microscopy - Correct Answer A 1. The average daily output of urine is: A. 200 mL B. 500 mL C. 1200 mL D. 2500 mL - Correct Answer C 1. The concentration of a normal urine specimen can be estimated by which of the following? A. Color B. Clarity C. Foam D. Odor - Correct Answer A 1. The type of nephron responsible for renal concentration is the: A. Cortical B. Juxtaglomerular - Correct Answer B 2. An unidentified fluid is received in the laboratory with a request to determine whether the fluid is urine or another body fluid. Using routine laboratory tests, what tests would determine that the fluid is most probably u rine? A. Glucose and ketones B. Urea and creatinine C. Uric acid and amino acids D. Protein and amino acids - Correct Answer B 2. Failure to mix a specimen before inserting the reagent strip will primarily affect the: A. Glucose reading B. Blood reading C. Leukocyte reading D. Both B and C - Correct Answer D 2. The best way to break the chain of infection is: A. Hand sanitizing B. Personal protective equipment C. Aerosol prevention D. Decontamination - Correct Answer A 2. The function of the peritubular capillaries is : A. Reabsorption B. Filtration C. Secretion D. Both A and C - Correct Answer D 2. The normal yellow color of urine is produced by: A. Bilirubin B. Hemoglobin C. Urobilinogen D. Urochrome - Correct Answer D 2. Variations in the microscopic analysis of urine includ e all of the following except: A. Preparation of the urine sediment B. Amount of sediment analyzed C. Method of reporting D. Identification of formed elements - Correct Answer D 3. All of the following can cause false -negative microscopic results except: A. Braking the centrifuge B. Failing to mix the specimen C. Dilute alkaline urine D. Using midstream clean -catch specimens - Correct Answer C 3. Blood flows through the nephron in the following order: A. Efferent arteriole, peritubular capillaries, vasa recta, afferent arteriole B. Peritubular capillaries, afferent arteriole, vasa recta, efferent arteriole C. Afferent arteriole, peritubular capillaries, vasa recta, efferent arterio le D. Efferent arteriole, vasa recta, peritubular capillaries, afferent arteriole - Correct Answer C 3. Testing a refrigerated specimen that has not warmed to room temperature will adversely affect: A. Enzymatic reactions B. Dye -binding reactions C. The sodium nitroprusside reaction D. Diazo reactions - Correct Answer A 3. The current routine infection control policy developed by CDC and followed in all health -care settings is: A. Universal Precautions B. Isolation Precautions C. Blood and Body Fluid Precautions D. Standard Precautions - Correct Answer D 3. The presence of bilirubin in a urine specimen produces a: A. Yellow foam when shaken B. White foam when shaken C. Cloudy specimen D. Yellow -red specimen - Correct Answer A 3. The primary inorganic substance found in urine is: A. Sodium B. Phosphate C. Chloride D. Calcium - Correct Answer C 4. A patient presenting with polyuria, nocturia, polydipsia, and a low urine specific gravity is exhibiting symptoms of: A. Diabetes insipi dus B. Diabetes mellitus C. Urinary tract infection D. Uremia - Correct Answer A 4. A urine specimen containing melanin will appear: A. Pale pink B. Dark yellow C. Blue -green D. Black - Correct Answer D 4. An employee who is accidentally exposed to a possible blood -borne pathogen should immediately: A. Report to a supervisor B. Flush the area with water C. Clean the area with disinfectant D. Receive HIV prophylaxis - Correct Answer A 4. Filtration of protein is prevented in the glomerulus by: A. Hydrostatic pressure B. Oncotic pressure C. Renin D. The glomerular filtration barrier - Correct Answer D 4. The reagent strip reaction that requires the longest reaction time is the: A. Bilirubin B. pH C. Leukocyte es terase D. Glucose - Correct Answer C 4. The two factors that determine relative centrifugal force are: A. Radius of rotor head and rpm B. Radius of rotor head and time of centrifugation C. Diameter of rotor head and rpm D. RPM and time of centrifugation - Correct Answer C 5. A patient with oliguria might progress to having: A. Nocturia B. Polyuria C. Polydipsia