Chapter 035 Hypoxia and Cyanosis (Part 5) doc

... Chapter 035. Hypoxia and Cyanosis (Part 5) PERIPHERAL CYANOSIS Probably the most common cause of peripheral cyanosis is the normal vasoconstriction ... results in pallor and coldness, and there may be associated cyanosis. Venous obstruction, as in thrombophlebitis, dilates the subpapillary venous plexuses and thereby intensifies cyanosis. Approach ... acquir...

Ngày tải lên: 06/07/2014, 15:21

... Generally, digital clubbing does not occur with them. Chapter 035. Hypoxia and Cyanosis (Part 4) Differential Diagnosis CENTRAL CYANOSIS (Table 35-1) Decreased Sa O2 results from a marked ... at rest, and shunting of this blood intensifies the cyanosis. Secondary polycythemia occurs frequently in patients with arterial O 2 unsaturation and contributes to the c...

Ngày tải lên: 06/07/2014, 15:21

... only in part by an FI O2 of 100%. Chapter 035. Hypoxia and Cyanosis (Part 1) Harrison's Internal Medicine > Chapter 35. Hypoxia and Cyanosis HYPOXIA The fundamental task of the ... intensifies hypoxia and can initiate a vicious circle. Rarely, high-altitude cerebral edema (HACE) develops. This is manifest by severe headache and papilledema and...

Ngày tải lên: 06/07/2014, 15:21

... different from that in other types of hypoxia; the skin is warm and flushed owing to increased cutaneous blood flow that dissipates the excessive heat produced, and cyanosis is usually absent. Exercise ... tissues, directly and/ or reflexly; (3) increasing O 2 extraction from the delivered blood and widening the arteriovenous O 2 difference; and (4) reducing the pH of the...

Ngày tải lên: 06/07/2014, 15:21

... Chapter 035. Hypoxia and Cyanosis (Part 3) Adaptation to Hypoxia An important component of the respiratory response to hypoxia originates in special chemosensitive ... cells in the carotid and aortic bodies and in the respiratory center in the brainstem. The stimulation of these cells by hypoxia increases ventilation, with a loss of CO 2 , and can lead to respi...

Ngày tải lên: 06/07/2014, 15:21

... obstruction, diarrhea Chapter 046. Sodium and Water (Part 5) Hypovolemia: Treatment The therapeutic goals are to restore normovolemia with fluid similar in composition to that lost and to replace ... solution can be absorbed and result in a dilutional hyponatremia. The metabolism of sorbitol and glycine to CO 2 and water may lead to hypotonicity if the accumulated f...

Ngày tải lên: 06/07/2014, 15:21

... is in the scalp where it may Chapter 053. Eczema and Dermatitis (Part 5) Stasis dermatitis. An example of stasis dermatitis showing erythematous, scaly, and oozing patches over the lower ... this patient. Stasis Dermatitis and Stasis Ulceration: Treatment Patients with stasis dermatitis and stasis ulceration benefit greatly from leg elevation and the routine use of...

Ngày tải lên: 06/07/2014, 20:20

... most individuals with hiatal hernias do not have excess heartburn. Chapter 039. Nausea, Vomiting, and Indigestion (Part 5) Gastrointestinal Motor Stimulants Drugs that stimulate gastric ... available in the United States, exhibits prokinetic and antiemetic effects but does not cross into most other brain regions; thus, anxiety and dystonic reactions are rare. The main s...

Ngày tải lên: 06/07/2014, 15:21

Ngày tải lên: 14/12/2013, 13:15

... Pen and Ferdinando rushed in immediately the carriage at the door and wonderful was the reunion.' 4. He up and found the cool blue eyes on him. 5. The doors swished shut behind me and ... met, standing in the doorway of the croft, her black hair blowing in the breeze as she me goodbye. 5. They tackled their political, tactical and strategic problems swiftly and directl...

Ngày tải lên: 20/01/2014, 16:20