有創(chuàng)血壓監(jiān)測(cè)ppt課件(參考版)
2025-05-28 23:47本頁面
【正文】 Holland, S (1997). Ask the experts. Critical Care Nurse, 17 (3), 1416. 有創(chuàng)動(dòng)脈壓監(jiān)測(cè) : 血壓讀數(shù) 有創(chuàng)動(dòng)脈壓與無創(chuàng)血壓的區(qū)別 ?測(cè)定循環(huán)血容量的不同成分 ?有創(chuàng)動(dòng)脈血壓測(cè)定壓強(qiáng) ?即單位面積上循環(huán)血液所產(chǎn)生的壓力 ?袖帶血壓測(cè)定血流 ?單位時(shí)間內(nèi)流過的血液量 有創(chuàng)動(dòng)脈壓監(jiān)測(cè) : 血壓讀數(shù) ?健康人有創(chuàng)及無創(chuàng)血壓測(cè)定 MAP相差不超過 10 mmHg ?高血壓患者 ?無創(chuàng)血壓低估實(shí)際血壓 ?低血壓患者 ?無創(chuàng)血壓高估實(shí)際血壓 有創(chuàng)動(dòng)脈壓監(jiān)測(cè) : 壓力波形 ?當(dāng)對(duì)有創(chuàng)血壓讀數(shù)有懷疑時(shí) , 應(yīng)當(dāng)觀察動(dòng)脈壓力波形 有創(chuàng)動(dòng)脈壓監(jiān)測(cè) : 壓力波形 ? The initial steep up swing is called the anacrotic rise and occurs during early systole with the opening of the aortic valve and left ventricular contraction. The rounded peak of the waveform is due to the continued stroke volume ejection from the left ventricular contraction and is therefore still in systole. The other side of the waveform is the downward slope which, represents the peripheral run off following the cessation of the contraction. The notch on the downward slope represents the closure of the aortic valve and is called the dicrotic notch which heralds the onset of diastole and the waveform will continue to decline until the next systole (Darovic amp。 Schroeder, J. (1995). Techniques in bedside hemodynamic monitoring. (5th ed). St Louis: Mosby. 有創(chuàng)動(dòng)脈壓監(jiān)測(cè) : 傳感器位置 ?護(hù)士必須了解傳感器位置的重要性 ?不準(zhǔn)確的讀數(shù)可以導(dǎo)致錯(cuò)誤的治療 ?對(duì)患者造成危害 有創(chuàng)動(dòng)脈壓監(jiān)測(cè) : 參考平面與調(diào)零 ?準(zhǔn)確性 ?每當(dāng)氣液平面與參考點(diǎn)的相對(duì)位置改變時(shí) , 均應(yīng)重新確定參考平面并調(diào)零 ?消除靜水壓的影響 ?一致性 ?體表標(biāo)志點(diǎn)應(yīng)當(dāng)特殊標(biāo)明 有創(chuàng)動(dòng)脈壓監(jiān)測(cè) : 管路 ?傳感器與動(dòng)脈插管間的管路長(zhǎng)度影響監(jiān)護(hù)儀讀數(shù) ?順應(yīng)性差 ?長(zhǎng)度 120 cm ?半徑足夠大 ?管路需要傳導(dǎo)來自插管尖端的液體搏動(dòng) ?管路過長(zhǎng)或過短 , 過硬或過軟都會(huì)影響讀數(shù)的準(zhǔn)確性 Daily, E., amp。 Holl
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