Basic Hematology
Review Basic Hematology Chapters 1-5(Safety, microscopy, phlebotomy QC)
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- A clinical laboratory scientist performs 30 replicate hemoglobin determinations on a single blood sample. When statistics are used to determine the precision of the method, the mean is 13.8 g/dL and 1 SD is 0.1 g/dL. This means that 95.5% of the results on this specimen lie
- A coagulation screen is ordered on a patient who is a difficult draw. A 5-mL blue top tube is drawn but fills only halfway. What would be the appropriate next step?
- A laboratory gets numerous complaints regarding the length of time it takes hematology results to get to the emergency department. What would be an appropriate response?
- Hematocrit is also called
- Hematology is the study of
- How should a microscope be carried?
- Personal protective clothing, which must be provided by the employer, includes
- One of two controls that have been evaluated over the last 28 days gives a result on day 29 between 2 and 3 SDs of the mean; the other control is within 2 SDs of its mean. What is the correct procedure to follow?
- Proper specimen collection and patient satisfaction are components of
- Safety requirements for phlebotomy include:
- Select the term that describes a low white blood cell count.
- The ability to distinguish between two objects that are situated close to one another as separate entities is
- A pregnancy test is negative on a patient who IS pregnant. This is an example of:
- The control values for both controls for the prothrombin test were ranging between the mean and ±1 SD for the first 19 days of use. Starting on day 20, the values for both were suddenly and consistently between +1 and +2 SDs. This is an example of a
- The preanalytic phase of clinical laboratory testing includes all of the following except
- The primary function of platelets is to
- Upon centrifugation of a blood specimen, the layer between the red blood cells and plasma is called
- What anticoagulant agent is used most often in the hematology laboratory?
- What converts for curvature in a field so that a flat field with uniform focus is seen?
- What is the final magnification of an image if the ocular lens is 15× and the objective lens is 50×?
- What is the recommended number of times for one phlebotomist to attempt to draw a patient?
- What should be adjusted if two overlapping images, instead of only one, are seen when looking through a microscope?
- What solution is best for cleaning lenses?
- What type of microscope helps in the identification of urine crystals?
- Where should the condenser be located when using the ×100 oil objective?
- Which of the following is the most important to prevent the spread of infection?
- Which of the following is true regarding reference ranges?
- Which of the following procedures is safe from the production of an aerosol mist?
- Which of the following would be an acceptable sample?
- Who is ultimately responsible for determining the specimen integrity before analysis?
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