CH 32 Apply Your Knowledge

Latisha has prepared the blood smears and looks at them to make sure they have been prepared correctly. Which of the following slides would not be considered suitable for a blood smear? A slide that has a margin on all sides of the smear A slide that has a rounded, thick edge at the end of the smear A slide that has a feathered edge at the end of the smear A slide that has a smear length of 1½ inches

A slide that has a rounded, thick edge at the end of the smear

Deborah Murray is 6 months pregnant, and Dr. Diapedesis wants Latisha Sharpe, CMA (AAMA), to check her hemoglobin level. Dr. Diapedesis has ordered this test because pregnant women are at increased risk for Osteoporosis Anemia Scurvy Polycythemia

Anemia

Latisha fills two capillary tubes and centrifuges them in the microhematocrit centrifuge. After the centrifuge comes to a complete stop, Latisha reads the results At the top of the buffy coat At the top of the plasma column At the top of the red blood cell column Next to the black line on the capillary tube

At the top of the red blood cell column

Dr. Diapedesis orders a CBC with differential cell count on Chad Cron. After collecting a lavender tube, Latisha prepares the blood smears. Which of the following techniques would Latisha not use in preparing the smears? Placing a drop of blood ¼ inch from the frosted edge of the slide Using a 30-degree angle to make the smear Using a smooth continuous motion to make the smear Gently blowing on the slides to dry them

Gently blowing on the slides to dry them

Latisha Sharpe, CMA (AAMA), determines Richard's hematocrit value to be 37. This value is considered Normal High Low Invalid

Low

The results of the differential cell count are included on Chad's laboratory report. Which of the following indicates an abnormal value? Neutrophils: 52 Eosinophils: 2 Basophils: 0 Lymphocytes: 41 Monocytes: 5

Lymphocytes: 41

Latisha collects a capillary blood specimen from Deborah and runs a hemoglobin test. The hemoglobin value is 14, which is considered Normal High Low Invalid

Normal

Latisha Sharpe, CMA (AAMA), is getting ready to draw a blood specimen for a PT/INR test from Daniel Stockton, who is on long-term warfarin therapy. The sample will be analyzed at an outside laboratory. Latisha performs all of the following except Using a 5-mL, light blue tube to collect the specimen Placing a bar code label on the tube Filling the tube to the exhaustion of the vacuum Shaking the tube three to four times to mix the blood with the anticoagulant

Shaking the tube three to four times to mix the blood with the anticoagulant

Richard Wrighter comes in for a general physical examination. As part of his examination, Dr. Diapedesis asks Latisha Sharpe, CMA (AAMA), to perform a hematocrit. Latisha performs a finger puncture. After inserting the tip of the capillary tube into the drop of blood, Latisha discovers that no blood is entering the tube. What is the most likely cause of this? The capillary tubes are outdated. Latisha did not wipe away the first drop of blood. Air bubbles have entered the capillary tube. The tip of the capillary tube is pressed against Richard's finger.

The tip of the capillary tube is pressed against Richards finger

The laboratory report on Chad Cron is sent electronically to the medical office from the laboratory that ran the test. After it prints at the medical office, Latisha retrieves it and places it on Dr. Diapedesis's desk for review. Which of the following indicates an abnormal value for Chad's CBC? Hemoglobin: 16 g/dL Hematocrit: 51% White blood cell count: 14.25 × 103 mm3 Red blood cell count: 5.85 × 106 mm3

White blood cell count: 14.25 x 103 mm3