Arterial Line Placement

Author(s):  
Michael R. King ◽  
Ramesh Kodavatiganti ◽  
Hubert A. Benzon

Chapter 5 covers the fundamentals and techniques of arterial line placement, including the palpation technique, ultrasound guided arterial line placement, and the cutdown technique. Arterial line placement involves inserting a catheter into a peripheral artery, most commonly the radial or femoral artery. Arterial lines provide beat-to-beat blood pressure monitoring as well as a readily available means of obtaining blood samples to check arterial blood gas measurements and other labs. Cannulation of the ulnar, brachial, axillary, posterior tibial, dorsalis pedis, and umbilical (in neonates) arteries has also been described, although these sites may be higher risk. Although the techniques described in this chapter focus on the radial, femoral, and posterior tibial approaches, many of the general principles apply to the other arteries as well.

2020 ◽  
Vol 13 (6) ◽  
pp. e234370
Author(s):  
Narayan Bala ◽  
Vinay Pathak ◽  
Shilpa Goyal ◽  
Nikhil Kothari

The cannulation of the peripheral artery is a prerequisite for invasive blood pressure monitoring and repeated arterial blood gas sampling. Radial artery is commonly used site for inserting an arterial cannula. Many times, either during the change of posture or during prone ventilation, the arterial cannula gets displaced, and it is challenging to reinsert the arterial cannula in the lateral or prone position. In such circumstances, an alternative site of arterial cannulation needs to be looked into; we report a case in which the popliteal artery was used for arterial cannulation while the patient was in a prone position.


Author(s):  
Tom Scott ◽  
Hanna van Waart ◽  
Xavier CE Vrijdag ◽  
David Mullins ◽  
Peter Mesley ◽  
...  

Arterial blood gas (ABG) measurements at both maximum depth and at re-surfacing prior to breathing have not previously been measured during freedives conducted to extreme depth in cold open-water conditions. An elite freediver was instrumented with a left radial arterial cannula connected to two sampling syringes through a low-volume splitting device. He performed two open-water dives to 60 metres depth (197', 7 atmospheres absolute pressure) in the constant weight with fins competition format. ABG samples were drawn at 60 metres (by a mixed-gas scuba diver), and again on re-surfacing before breathing. An immersed surface static apnea, of identical length to the dives and with ABG sampling at identical times, was also performed. Both dives lasted approximately two minutes. PaO2 increased during descent from an indicative baseline of 15.8 kPa (after hyperventilation and glossopharyngeal insufflation) to 42.8 and 33.3 kPa (dives one and two), and decreased precipitously (to 8.2 and 8.6 kPa) during ascent. PaCO2 also increased from a low indicative baseline of 2.8 kPa to 6.3 and 5.1 kPa on dives one and two; an increase not explained by metabolic production of CO2 alone since PaCO2 actually decreased during ascent (to 5.2 and 4.5 kPa). Surface static apnea caused a steady decrease in PaO2 and increase in PaCO2 without the inflections provoked by depth changes. Lung compression and expansion provoke significant changes in both PaO2 and PaCO2 during rapid descent and ascent on a deep freedive. These changes generally support predictive hypotheses and previous findings in less extreme settings.


2018 ◽  
Vol 05 (03) ◽  
pp. 168-172
Author(s):  
Indu Kapoor ◽  
Charu Mahajan ◽  
Ruhi Mamuliya ◽  
Hemanshu Prabhakar

Abstract Aim Determination of hemoglobin (Hb) concentration by standard methods is time consuming, invasive, and intermittent. Noninvasive (NI) methods of Hb estimation are less time consuming, and reduce the risk of infection, number of required working personnel, and long-term costs. In this study, we aimed to find the accuracy of Hb values at various time points using noninvasive (NI) Hb monitoring and standard invasive techniques such as laboratory (LabHb) and arterial blood gas (ABG). Methods All American Society of Anesthesiologists (ASA) physical grade I and II adult patients between 18 and 65 years of either gender undergoing pituitary surgery under general anesthesia were included over a period of 1 year. Samples were collected for Hb estimation from the arterial line (aHb) using ABG analyzer machine and LabHb using automated Hb analyzer. Simultaneously, Hb reading from the NI Hb monitor was recorded using Masimo Spot Hemoglobin Check Device. Bland–Altman plot was used to find out agreement between Hb values drawn from three different techniques. A p-value < 0.05 was considered significant. Results A total of 30 patients participated in the study. The male to female ratio was 13:17. Statistical analysis showed poor correlation between the invasive and NI methods of Hb estimation. Conclusion NI method of Hb estimation may be successfully used in clinical practice, replacing estimation from ABG analysis or laboratory tests. However, NI method cannot replace the invasive methods of Hb estimation.


Arterial blood gas (ABGs) analysis forms the cornerstone of emergency respiratory investigation. In many situations values obtained dictate management strategy and facilitate decision-making. It is an uncomfortable procedure for the patients and if repeated ABGs are required, consider whether less invasive measures, such as respiratory rate, pulse oximetry or capillary blood gas measurements could be used....


2002 ◽  
Vol 43 (1) ◽  
pp. 10 ◽  
Author(s):  
Sung Yong Park ◽  
Sou Ouk Bang ◽  
Young Lan Kwak ◽  
Young Jun Oh ◽  
Hyuck Rae Cho ◽  
...  

2019 ◽  
Vol 56 (16) ◽  
pp. 161701
Author(s):  
章小曼 Xiaoman Zhang ◽  
翁存程 Cuncheng Weng ◽  
朱莉莉 Lili Zhu ◽  
蔡坚勇 Jianyong Cai ◽  
吴淑莲 Shulian Wu ◽  
...  

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