Which of the following electrical devices senses the freezing point of a solution in an osmometer?
A. A pH electrode
B. A pressure transducer
C. A conductivity electrode
D. A thermistor
D
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A clinical laboratory technician is asked to determine the concentration of red blood cells (RBCs) from a sample of turbid knee fluid using a hemacytometer. The technician dilutes the sample with normal saline and loads it onto the hemacytometer
A total of 400 red blood cells are counted over 5 squares. What additional information is required to calculate the concentration of RBCs? A) The WBC count B) The dilution factor C) The number of platelets D) The red-cell distribution width
Infants and children can become rapidly dehydrated. Before surgery begins, an ______________ line is inserted to maintain access to the circulatory system
A. IV C. catheter B. endotracheal tube D. tube
Beau's lines __________
Fill in the blank(s) with the appropriate word(s).
An optimal AP pelvis projection demonstrates
1. the sacrum and coccyx aligned with the symphysis pubis. 2. the ischial spines aligned with the pelvic brim. 3. a narrow right iliac wing and a wider left iliac wing. 4. a symmetrically appearing obturator foramen. a. 1 only b. 1 and 4 only c. 1, 2, and 4 only d. 3 and 4 only