A woman in the third trimester of pregnancy is predisposed to supine hypotension syndrome in pregnancy while in the supine or sitting position due to the hemodynamic and anatomic changes of pregnancy. The large uterus of late pregnancy can compress the inferior vena cava (IVC) such that venous return is significantly reduced. This decreased preload […]
When a patient returns from the operating room following spinal surgery it is important to establish with the surgical team any spine instability as well as the integrity of the dura. This information is critical should the patient need to be reintubated, vomit, or elevate the head of bed. There would be no greater catastrophe
If you want to convert MMhg to CMh2o the following knowledge is important for this. Pressure is defined as the force per unit area. It can be applied either to a solid or a liquid interface at a point perpendicular to the surface and is represented by the height of the column that exerts a
Following are the Hypoxia signs Psychological Hypoxia signs – Higher centers are first impaired in hypoxia due to deficiency of oxygen to the brain tissue. Psychomotor and emotional judgement is poor in the absence of oxygen. The mechanisms mediating cerebral vasodilation during hypoxia are not fully understood but may include neurogenic effects initiated by peripheral and neuraxial chemoreceptors,
Unstable tachycardias can be manifested by chest pain, shortness of breath, decreased urine output, mental status changes, or hypotension. The assessment of a patient with a tachycardia requires a systematic approach. First, the physician must determine whether the patient is experiencing evidence of hemodynamic compromise as a result of the tachycardia, which is generally not
Unstable Tachycardias – narrow complex and wide complex tachycardias Read More »
Heliox is a mixture of Helium and oxygen being considered for use in asthma patients. Therapeutic strategies for patients with pulmonary medicine often employ bronchodilators or corticosteroids to reduce airway resistance and improve airflow. As an alternative strategy, viscosity and density of the atmosphere manipulated to the same desired effect. Air consists of 21% oxygen, with
There are 4 types of Hypoxia . The 4 types of Hypoxia are as follows: 1. Anoxic hypoxia or Diffusion hypoxia Anoxic hypoxia also called as diffusion hypoxia is essentially due to the deficiency of oxygen being absorbed by the lungs. This is either due to a decrease in the inspired concentration of oxygen in the air
The postoperative management of a kidney transplant recipient requires meticulous monitoring of urine output and electrolyte levels. Renal allografts will not necessarily make urine as soon as they are reperfused. Depending on the particular center, the incidence of delayed graft function ranges from 5% to 15% in cadaveric and from 0% to 5% in live
Postoperative management of a kidney transplant recipient Read More »
Hyperbaric oxygen therapy is currently used in various clinical treatment regimens like for treating carbon monoxide poisoning. These include decompression sickness, carbon monoxide poisoning, cyanide poisoning, gas embolus, gas gangrene, resistant anaerobic infections, and threatened split-thickness skin grafts. The mechanism of action in treating carbon monoxide poisoning purportedly involves increasing tissue oxygenation, which increases collagen
According to the chest pain guidelines the faster the diagnosis can be made and the occlusion reversed, the more likely the patient is to salvage myocardial tissue and benefit from improved outcomes. Cardiovascular disease is a dominant cause of morbidity and mortality in the United States and acute myocardial infarction (MI) is one of the
