Clinical measurement SAQs

To work on

pH questions

thermodilution graph and sites

22 Questions

see 20050606(01)

Briefly describe the principles and sources of error in the measurement of systemic arterial blood pressure using an automated oscillometric non-invasive monitor. (03A13)
Briefly describe the principles and sources of error in the measurement of arterial blood pressure using an automated oscillometric non-invasive monitor. (00B2)
Briefly describe the measurement of blood pressure using an automated oscillometric non-invasive blood pressure monitor. Briefly outline the problems of this kind of monitor. (1996)
Write short notes on the principles of oscillometry. (1992)
Write short notes on the ideal properties of a pressure transducer. (1991)

Briefly describe the measurement of pH in a blood sample using a pH electrode. (01A3)
How does a fall in temperature influence blood gas solubility and acid base values? (99B1) (98A6)
Write short notes on measurement of acid base disturbances. (1991)

Explain how cardiac output is measured using a thermodilution technique. (00A1)

See 200500606(02)-(03)

Describe how the partial pressure of oxygen in a blood sample is measured using a Clark electrode. (99B7)

Briefly discuss the factors which influence the measurement of oxygen saturation using a pulse oximeter. (1993)

Explain briefly the causes of differences between measured end tidal and arterial partial pressures of carbon dioxide. (1996)
Write short notes on principles of measurement of end tidal carbon dioxide tension. (1992) (1990)

Differentiate between the terms 'heat' and 'temperature'. Explain briefly the principles of a mercury thermometer, indicating its advantages and disadvantages. (99A5)
Briefly differentiate between the terms 'heat' and 'temperature'. Explain briefly the principles of a thermistor indicating its advantages and disadvantages. (95B7)

Briefly describe the differences between laminar and turbulent flow. List the factors that increase the probability of turbulent flow. (97B6)

Explain the physical principles of ultrasound imaging. (02B14) (98B4)
Briefly explain the principles of Doppler ultrasound used to measure cardiac output using echocardiography. (98A4)

Outline the principles of a pneumotachograph. What factors affect the accuracy of this device? (02A7)
Outline the principles of the pneumotachograph. What factors affect the accuracy of this device? (95A5)