BMET 313 Week 7 HomeWork

Homework #7

Question

9). State the purpose, uses, operation, calibration, and maintenance for colorimeters (include a block diagram/schematic).

10). State the purpose, uses, operation, and maintenance for a flame photometer ( include a block diagram/schematic).

11). State the purpose, uses, operation, and maintenance for spectrophotometers (include block diagram/schematic).

12). State the purposes, uses, operation, and maintenance for blood cell counters (include block diagram).

13). State the purposes, uses, and maintenance for pH/blood gas analyzers (include a diagram and description of a pH glass electrode).

14). State the purpose, uses, operation, and operation for chromatographs (include the different types).

15). State the purpose, uses, and maintenance of autoanalyzers (include system block diagram).

Problems

1). Refer to Figure 16-4b. Given V1 = +1.5mV with reference cuvetter and V1 = +35mV with reference and sample cuvettes, R2 = R3 = 2.4 k ohm, calculate the voltage read on the meter display for both condition of V1.

2). A nurse reports that a colorimeter that was previously working is now giving very low transmittance reading for all blood samples, which portion(s) of the device would you check first?

3). A medical technologist reports that the Coulter counter model S in the clinical lab gives correct RBC, WBC, Hct, and Hgb readings but incorrect MCV, MCH, and MCHC readings. What checkout procedure would you use to identify the trouble source?

4). A nurse in the neonatal nursery cannot obtain accurate readings with an isolette oxygen monitor. Which protion(s) of the device would you check first?

5). A medical technologist reports that a pH meter in the clinical lab has an output that wanders about an apparently correct pH value, what part of the device should probably be replaced?