Shared Flashcard Set

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Blood Pressure Monitoring
Week 9
29
Nursing
Graduate
10/14/2015

Additional Nursing Flashcards

 


 

Cards

Term
BP
Definition
CO x SVR
Term
Invasive Monitoring
Definition

Systolic pressure= maximum instantaneous pressure

 

Diastolic pressure= minimum pressure

 

Mean Pressure= the area under the wave form 

Term
Taking BP measurements Peripherally
Definition

Increase in systolic pressure

 

Decrease in Diastolic pressure

Term
Gravatational Forces
Definition
Reduce mean pressure about 7.5 mmHg/10 cm of height
Term
Underdamped
Definition

"Ring"

 

Looks like rabbit ears 

Term
Adequate Damping
Definition
During square waveform test lowest peak is 1/2 of highest peak
Term
Overdamped
Definition
Flattened, rounded peaks
Term
Vascular Disease and Vasoconstriction
Definition
Can decrease peripheal readings up to 50 mmHg
Term
Waveforms
Definition

Crisp upstroke

 

Broad Peak

 

Diacrotic notch 

Term
Crisp Upstroke
Definition
May mean hyperdyanmic circulation
Term
Broad Peak
Definition
Indicates high cardiac output
Term
Diacrotic Notch
Definition
Indicates AV closure
Term
Underdamping
Definition
Can increase systolic eading
Term
Underdamping
Definition
Can increase systolic reading
Term
The Fast-Flush Test
Definition
Can determine the adequacy of the circuit damping and frequency
Term
Steps of Fast-Flush
Definition

After a brief flush, oscillations will be produced

 

Determine the period and the A2/A1 ratio 

 

Low peak/high peak 

Term
Usual Paper Speed
Definition
25 mm/sec
Term
Calculating Period
Definition
1.2 mm (number from notes) x 25 mm/sec= 30 Hz
Term
Amplitude
Definition

3 mm / 7mm= 0.42

 

A2/A1

Term
System Frequency
Definition
Greater than 10 Hz
Term
Quick Visual Test
Definition
Fast-Flush should be followed by 1-3 oscillations
Term
Manual Blood Pressure Monitoring
Definition

Riva-Rocci technique

 

Depends on vessel occlusion 

Term
Pulse Oximetry
Definition
Can be used to do occlusion pressure technique
Term
Manual BP Monitoring Vs. Direct Techniques
Definition
Usually systolic pressure is lower and diastolic pressure is higher
Term
Oscillometric BP Monitoring
Definition

At pressures approximating systolic pressure, the needle begins to oscillate

 

Maximum oscillation responds with the mean pressure

 

Diastolic pressure is a calculated value

Term
Penaz Technique Of BP Monitoring
Definition

Uses a small cuff to fit around finger

 

Has an infrared light source which sends light through the digital arteries

 

The signal is used to rapidly inflate and deflate the cuff to near systolic pressure

 

Systolic pressure corresponds with cuff pressure

Term
Penaz Technique Flaws
Definition

Low flow rates can reduce the useful signal

 

Constant inflation of the cuff to near systolic levels greatly reduces the blood flow distally

 

Prolonged use can result in ischemic pain

Term
Arterial Tonometric BP Monitoring
Definition

Places transducer directly over an artery

 

Infers pressure from changes in slight amplitude 

 

Method is very sensitive to motion artifact 

Term
Pulse Transit Technique of BP Monitoring
Definition

Pulse transit time is inversely proportional to systolic pressure

 

Pulses are measured at two different sites with optical transducers

 

Usually the finger and forhead arteries

 

Accuracy of this technique is yet to be determined in a variety of clinical settings 

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