A pulse oximeter model linking arterial (SaO2) and peripheral (SpO2) oxygen saturation is the terminal part of a mathematical neonatal transport. Previous studies have confirmed overestimation measured by oximetry in neonates compared to large variability values over time caused measurement inaccuracies. This work aimed determine SpO2 noise that affects biased value at each point integrate desc...

BACKGROUND The benefits of long-term oxygen supplementation in COPD patients with hypoxemia are well established. The standard approach to prescribing oxygen uses a static assessment of oxygen requirements in a hospital or clinic setting. The assumption behind this approach is that patients will maintain a "therapeutic" hemoglobin oxygen saturation (SpO2) in the outpatient setting. We questione...

OBJECTIVE High incidence, rising admission rates, and relatively ineffective therapies make the management of bronchiolitis controversial. Since 1980, the rate of hospitalization for children with bronchiolitis has increased by nearly 250%, whereas mortality rates for the disease have remained constant. It has been speculated that the increasing use of pulse oximetry has lowered the threshold f...

STUDY OBJECTIVE To determine whether a reservoir nasal cannula (RNC) (Oxymizer) provides an arterial hemoglobin oxygen saturation as measured by pulse oximetry (SpO2) equivalent to that provided by the standard nasal cannula (SNC) during sleep in hypoxemic patients with COPD while reducing oxygen flow requirement and cost. DESIGN The study took place in a sleep laboratory for three nights, wi...

Midazolam was used for anaesthesia in 20 patients undergoing cardioversion; 10 received flumazenil, which caused immediate rapid reversal of anaesthesia, and these patients maintained SpO2 greater than 95%, breathing air, within 5-10 min. In contrast, patients in the placebo group were still partially sedated and required oxygen therapy for up to 2 h to maintain a normal SpO2. Arterial pressure...

The normal presentation of a patient with a drug induced methemoglobinemia is a low pulse oximetry (SpO2) reading, usually in the mid 80% range, while having a very high PaO2 on an arterial blood gas (ABG)1. We present a case where the initial ABG showed a very high PaO2 and a metabolic alkalosis while the SpO2 fluctuated (85% 99%). Those findings combined with hemodynamic instability complicat...

We report a patient who was suspected of transfusion-related acute lung injury. A 60-year-old man underwent emergency thoracotomy and hemostasis after pneumonectomy. The SpO2, decreased abruptly to 66% 90 minutes after transfusion of packed red blood cells and fresh frozen plasma. He was ventilated with 100% oxygen. The SPO2 returned to 100% in 3 minutes. Postoperative chest radiography showed ...