Perfusion

causing further damage, whilst cerebral oedema can inhibit blood flow, tissue perfusion and the brains ability to receive adequate nutrition and oxygenation. As Shirley’s blood pressure is low this can also affect cerebral perfusion due to decreased tissue oxygenation and lead to confusion and ultimately…

could differentiate benign and malignant tumors in the head and neck region12 and there was the correlation of the microvascular density of head and neck squamous cell carcinoma and locally controlled of non-NPC (head and neck carcinoma) with the perfusion CT parameters13. Recently, the accuracy of CTP in detecting rNPC was presented and suspected the CTP will pay major role in follow-up NPC15 but there was still no precision in practice to early detection of…

excessive loss of gastrointestinal fluids due to vomiting or diarrhea, or excessive loss of fluid due to a burn injury, decreased vascular filling because of anaphylactic or septic shocks, heart failure and cardiogenic shock which impairs perfusion, and decreased renal perfusion because of sepsis, vasoactive mediators, drugs, and diagnostic agents (Porth, 2009). Intrarenal failure can be caused by acute tubular necrosis which is when renal function is repressed resulting in death of the…

sympathetic and renin-angiotensin systems, suppress the atrial natriuretic peptide release, while anti-diuretic hormone concentration was demonstrated to play little role [1, 3–5] . Changes in PaCO2 and PaO2 levels were shown to influence renal perfusion or sodium and water clearance. Hence diuretic impact of both hypobaric and isobaric hypoxemia was demonstrated several decades ago [4–6]. Hypoxic ventilatory response, including increased minute ventilation and subsequent negative inspiratory…

A. H. (2016). Acute compartment syndrome. Orthopedic Clinics, 47(3), 517-525. Andrew H. Schmidt is a medical doctor of Orthopedic Surgery with Hennepin County Medical Center in Minnesota. Dr. Schmidt examines fasciotomy, Intramuscular pressure, perfusion pressure, monitoring pressure and complications of Acute Compartment Syndrome. Dr. Schmidt has 29 years of experience. He specializes in surgery and diagnosis treatment of injuries and disorders involving the musculoskeletal system. He is board…

Aspiration – A respiratory emergency Aspiration is the introduction of solids or liquids into the lungs. The presence of any substance other than breathable air impedes the perfusion in the alveoli, while the substance itself may also have damaging properties to the lung and airway tissues. Common aspirations include water, food, vomit, foreign objects or small particulates. The first three are easily introduced by the oropharynx by some sort of misdirection into the larynx rather than the…

weight gain due to Congestive heart failure (CHF). CHF is a condition in which the heart is unable to pump sufficient blood to meet the metabolic needs of the body (Figueroa & Peters, 2016). The result of inadequate cardiac output (CO) is poor organ perfusion and vascular congestion in the pulmonary (left-sided failure) and systemic (right-sided failure) circulation (Myers, 2014). This essay will discuss the symptoms in relation to the pathophysiological process of the alteration to cardiac…

Nitroglycerin acts directly on vascular smooth muscle to promote vasodilation. Nitroglycerin produces both arterial and venous dilation, which leads increase hemodynamic function, increase CO, and increased tissue perfusion. Venous dilation leads lead to a reduction in return blood flow to the heart and a decrease in preload, while arteriole dilation decreases SVR and afterload. Reduction in preload and afterload leads to reduction in cardiac workload, which decreases…

Liver failure, caused by things such as hepatitis and cirrhosis, leads to an array of symptoms including cardiorespiratory insufficiency (hepatopulmonary syndrome; HPS) and renal failure (hepatorenal syndrome; HRS). Disregarding the cause of liver failure itself, discuss the development of both of these symptoms. Hepatopulmonary Syndrome Figure 1: Blood Flow in Normal Conditions and Hepatopulmonary Syndrome (Grace & Angus, 2013). Figure 1 (above) shows the blood flow in a normal patient (top),…

A. vital signs every 4 hours. Provide oxygen as needed to increase tissue perfusion and ease breathing. Additionally, encourage the patient to call for help to prevent falls. Have call light, personal belongings and telephone within reached. Rounds every 1 hour to assist the patient to the bathroom and assess pain. Encourage the…