Search

Question of the Week: December 10, 1999 My patient has a Qs/Qt of .31. What does this mean? Answer: Qs/Qt is a measurement of pulmonary shunt. It describes the percentage of blood that reaches the left side of the heart without picking up oxygen. A normal Qs/Qt is .05....in other words, 5 % of the...

Question of the Week: November 12, 1999 What are the clinical signs of a 7th cranial nerve injury? Answer

Question of the Week: October 1,1999 Describe 3 clinical findings associated with compression of the right 3rd Cranial Nerve. Answer

Question of the Week: June 30, 2000 What is a PPI? Answer

What is the reason for measuring SJO 2 (Jugular Venous Oxygen Saturation)? Answer

Question of the Week: March 24, 2000 An intraventricular drainage unit is positioned at 15 cm above the external auditory canal. The bedside monitor reveals a pressure of 35 mmHg, however, there is no drainage of CSF from the catheter. Identify 2 possible reasons for the absence of drainage. Answer

Question of the Week: March 31, 2000 An intraventricular drainage unit is set-up with the drainage circuit open, and positioned at 10 cm above the external auditory canal. Drainage of the catheter should begin if the ICP rises above what pressure on the beside monitor? trr the absence of drainage...

How can I quickly determine whether a patient has hypoxemia? trr the absence of drainage. ANSWER: The following formula can be used to quickly calculate the severity of a patient's oxygen deficit: PaO 2 ÷ FiO 2 Normal = 90 ÷ .21 = 430 Acute Lung Injury (inflammatory response, increased capillary...

How is cerebral perfusion pressure calculated and what is a normal value? trr the absence of drainage. ANSWER

What interventions should be introduced if a patient has a PaO 2 /FiO 2 gradient of <300? ANSWER: Protective lung strategies should be initiated. These include: a) Increasing the level of PEEP to maintain an adequate PaO 2 and to maintain lung recruitment. b) Reducing the FiO2 to < .6 (using PEEP...