Chapter 41 & 42: Medical assisting

a

which of the following best describes a hematocrit test? a. ratio of the volumne of packed red blood cells b. requires large amount of blood c. measures the total volumne of WBC's d. requires filling one capillary tube

d

which of the following is a true statement regarding immunity? a. passively acquired immunity is through fighting off disease b. actively acquired immunity is through an injection c. immunity is always permanent d. none of the above

b

which of the following is the hormone required for the production of new red blood cells? a. hematopoietin b. erythropoietin c. hemoglobin d. plasma

b

which of the following is the major component of the RBC that transports oxygen? a. serum b. hemoglobin c. plasma d. protein

a

which of the following is the most common type of hemoglobin disease seen in ambulatory care? a. iron deficiency anemia b. sickle cell anemia c. pernicious anemia d. hypovolemia

c

which of the following is the normal range of values for hemoglobin of the adult women? a. 9-14 g/dl b. 12-14 g/dl c. 12-16 g/dl d. 13-18 g/dl

b

which of the following statements is false about disease states and cell changes? a. appendicitis causes increased neutrophils b. viral infection are associated with increased red blood cells. c. iron deficiency anemia shows hypochromic red blood cells. d. infectious mononucleosis shows increased lymphocytes.

c

How can the WBC count be estimated when performing the microhematocrit test? a. cannot be estimated b. measured at the bottom of the tube c. measure buffy coat thickness d. by the amount of plasma and platelets

b

Platelets or thrombocytes are involved in doing what in the blood? a. fighting infection b. coagulation c. carry's oxygen d. all the above

c

When must quality control be preformed when using a refractometer? a. at the end of the day b. by comparing values with tap water c. before testing each specimen d. at the beginning of each day

c

Which of the following is a true statement about the examination of urine? a. urine should be examined within 24 hours of voiding b. urine should be refrigerated for at least 1 hour before examination c. urine should be examined within 2 hours of voiding d. urine should never be refrigerated

b

Which of the following is a true statement regarding a first-morning urine specimen? a. more dilute b higher acid pH c. lower acid pH d. none of the above

d

Which of the following is an abnormal substance in urine? a. urea b. ammonium c. chloride d.fat

c

Which of the following is an adequate urine specimen for analysis? a. at least 2 mls b. at least 5 mls c. at least 10 mls d. at least 7 mls

b

Which of the following is the filtering unit of the kidney? a. renal arteries b. glomerulus c. tubules d. cortex

a

Leukocytes provide specific disease fighting functions in the blood. Which one of the following is not one of them? a. coagulation b. phagocytosis c. detoxification d. immune response

b, d, a, c

Match the definition with the appropriate term. 1. anisocytosis 2. hypochromic 3. poikilocytosis 4. normochromatic a. cells shows marked variation in shape. b. cells show marked variation in size. c. cells have proper amount of hemoglobin. d. cells have large, pale central area.

d

Near the end of the blood's journey through the kidney, in which area are the other substances that have not already been filtered secreted into the urine? a. glomerulus b. proximal convoluted tubule c. henle's loop d. distal convoluted tube

b

Oxygenated hemoglobin is what color? a. dark red b. bright red c. blue d. yellow

d

WBCs are divided into two basic groups known as what? a. granulocytes and cytoplasm b. polymorphonuclear apolymorphonuclear c. mononuclear and agranulocytes d. granulocytes and agranulocytes

b

What is NOT required on the urinalysis report? a. type of urine specimen b. patient's signature c. date and time the urine was tested d. findings e. provider who ordered the urinalysis

c

What is a normal range of urine specific gravity? a. 1.000-1.003 b. 1.001-1.003 c. 1.005-1.030 d. 1.035-1.35

d

What is the most frequently seen parasite in the urine? a. amorphous b. sperm c. yeast d. trichomonas

b

What type of blood is used for the microhematocrit test? a. arterial b. capillary c. capillary and arterial d. none of the above

a

When casts are formed, what accumulates in the kidney tubules? a. protein b. pH c. specific gravity d. ketones

b

When placing the sealed tubes into the microhematocrit centrifuge, what must be done before closing the lid? a. place tubes in slots next to each other. b. place tubes opposite each other, balancing each other across the centrifuge. c. determine the average values. d. set the timer and adjust the speed

d

When the "sed rate" increase, it detects what type of disease/condition? a. inflammation disease b. acute stress c. lupus d. all the above

b

Which ares on the reagent strip would be positive, indicating an infection and its presence in a urine sample? a. specific gravity b. leukocytes c. ketones d. urobilinogen

b

Which of the following are significant crystals that need to be documented? a. calcium phosphate b. uric acid c. amorphous d. calcium oxalate

d

Which of the following best defines hematology? a. study of blood chemistry b. study of blood proteins c. study of blood plasma d. study of blood cells

a

Which of the following best describes erythrocyte indices? a. calculations that provide size and hemoglobin content of RBCs. b. provides information for hematocrit c. allow for calculations of oxygen in hemoglobin d. abbreviated MCV, MCA, and MCC

c

Which of the following best describes the characteristics of yeast cells on microscopic examination? a. larger than red blood cells b. resembles casts c. smaller than red blood cells d. resembles crystals

b

Which of the following best describes the color of normal urine? a. clear b. straw c. amber d. smoky

d

Which of the following best describes the concentration level in the blood when glucose will be completely reabsorbed from the urine? a. 225 mg/dl b. 180 mg/dl c. 325mg/dl d. less than 180 mg/dl

c

Which of the following best describes the number of years that documentation for the performance of daily control testing must be kept? a. at least 1 year b. at least 2 years c. at least 3 years d. at least 4 years

a

Which of the following best describes what causes a foul odor in a urine sample? a. bacteria b. diabetes c. vitamins d. beets

c

Which of the following blood cells is not a granulocyte? a. eosinophil b. neutrophil c. lymphocyte d. basophil

d

Which of the following is NOT a CLIA regulation that applies to urine testing? a. person must have appropriate training in the methodology of the test b. person must be proficient in the use of the instruments used c. person must be aware of factors that influence test results d. person must have another qualified person preform the same quality control testing

d

Which of the following is NOT a classification for urine specimens? a. first morning b. fasting/timed c. 24-hour d. voided specimen

c

Which of the following is NOT a major kidney function? a. secretion b. reabsorbtion c. diffusion d. filtration

d

Which of the following is NOT an example of an artifact seen in urine? a. hair b. fibers c. powder d. crystals

c

Which of the following is NOT included in the physical examination of urine? a. observing and recording color b. noting unusual urine odor c. noting excess glucose d. measuring specific gravity

d

Which of the following is NOT included in the quality control of reagent strips? a. do not expose to moisture b. keep in the original container c. keep away from direct sunlight d. keep in the refrigerator

a

Which of the following is NOT true about casts? a. they are formed when ketones accumulate b. they are cylindrical with round or flat ends c. they are classified according to the substances in them d. the most common is the hyaline cast

c

Which of the following is NOT true regarding the significance of seeing many squamous epithelial cells on microscopic examination? a. has no medical significance b. indicates that the specimen is contaminated with skin cells c. indicates possible squamous cell cancer d. reported as few, moderate, or many

d

Which of the following is an appropriate action for a microscopic examination of urine sediment? a. completed after specimen settles for 1 hour b. performed on soluble materials c. heated before examination d. performed using a urine color atlas

c

Which of the following is an indication with the presence of casts and renal epithelial cells? a. no concern b. possible diabetes c. possible kidney disease d. cancer

c

Which of the following is normally included in completely reabsorbed threshold substances? a. creatinine b. amino acids c. protein d. chloride

b

Which of the following is not a cellular component of the blood? a. RBC b. buffy coat c. WBC d. platelet

c

Which of the following is not generally included in the complete blood count (CBC)? a. hemoglobin determination b. hematocrit determination c. erythrocyte sedimentation rate d. red blood cell (RBC) count

c

Which of the following is required for the synthesis of the heme portion of the hemoglobin molecule? a. calcium b. phosphorus c. iron d. carbon dioxide

b

Which of the following is the most appropriate action of the medical assistant when handling urine specimens? a. treat all specimens as if they were normal b. avoid splashes that may enter the eyes c. store urine specimens in a dark cabinet d. process urine specimens within 24 hours

a

Which of the following is the most appropriate action when observing urine color? a. record the color b. use a dark room c. place against a blue background d. transparency is not important

c

Which of the following is the most appropriate action when preforming a microscopic examination of a urine specimen? a. use the last night specimen and store it in a refrigerator b. centrifuge a 5 ml aliquot at 1,000 rpm for 5 minutes c. pour off the supernatant leaving about 1 ml in the bottom d. scan the sediment using a high-power objective

d

Which of the following is the most common urine specimen collection, performed in the outpatient setting? a. midstream clean-catch b. catheterized c. first morning d. random (spot)

b

Which of the following is the most frequently performed procedure in the medical office laboratory? a. hematology b. urinalysis c. chemistry d. microbiology

a

Which of the following is the most important technique to stress when instructing the patient in collecting a clean-catch, midstream specimen to avoid contamination a. cleansing genital area before collection b. collecting process c. labeling before collection d. lid placement

c

Which of the following is the most numerous of the white blood cells? a. monocytes b. lymphocytes c. neutrophils d. eosinophils

d

Which of the following is the normal range of values for the hematocrit of the adult male? a. 36-46% b. 30-40% c. 40-45% d. 40-55%

c

Which of the following is the normal value for a platelet count? a. 20,000-50,000 b. 50,000-100,000 c. 140,000-400,000 d. 400,000-600,000

a

Which of the following is the reference range of a leukocyte count for adults? a. 4,500-11,000 b. 5,00-12,000 c. 6,000-14,000 d. 10,000-30,000

c

Which of the following specimens usually requires added preservatives in the container? a. random b. fasting timed c. 24-hour d. catheterized

b

Which of the following statements is true about performing an accurate "sed rate" procedure? a. tube must be read at exactly two hours. b. counter must be free of vibrations. c. test should be set up within three hours d. test is conducted at 50 degrees.

c

Which of the following urine specimens is usually requested when quantitative tests are needed for different substances? a. random b. fasting timed c. 24-hour d. catheterized

d

Which of the following urine specimens may be required when urine specimens needs to be sterile? a. random b. fasting timed c. 24-hour d. catheterized

b

Dr. Natale orders a urinalysis for Mrs. Ferguson, whom he suspects has a urinary tract infection. When you take the specimen from Mrs. Ferguson and examine it for color, it is amber and cloudy. Which of the following best describes the appearance and composition of the urine? a. dilute; normal b. concentrated; has white blood cells c. dilute; has white blood cells d. concentrated; has red blood cells

c

Dr. Natale orders a urinalysis for Mrs. Ferguson, whom he suspects has a urinary tract infection. Which of the following will be included in the instructions you give her for this test? a. take this bottle and urinate in it b. take this bottle home and collect all your urine in it for 24-hours c. be sure to clean yourself as I explained to you and save only the urine from the middle of the stream d. take deep breaths and relax as this small tube is inserted to remove some sterile urine

c

Dr. Natale orders a urinalysis for Mrs. Ferguson, whom he suspects has a urinary tract infection. Which type of specimen will you collect? a. random b. 24-hour c. clean-catch midstream d. catheterized