Blog

ID the vessel (two ends identified) )

In measuring blood pressure, appearance of the tapping indicates …  (H9)

The shortest period of the cardiac cycle is _____.(H4)

___ is measured in distance traveled per time units. (H5)

Nicotine causes ____ of vessels in the skin (H15)

Vagal (vagus nerve) stimulation of the heart ______ heart rate. (H12)

ID the vessel l

Excessive pressure in the atria stimulates the release of atrial natriuretic peptide (ANP), a hormone that targets the kidney and blood vessels. ANP is released as a negative feed-back.  Based on atrial stretching triggering its release, predict the effect of ANP on urine production (+) and explain why that helps (+).  Predict the effect of ANP on blood vessels (+) and why this helps (+). 4 points possible.

A 76-year-old man with a history of chronic obstructive pulmonary disease has been receiving ventilatory support for 4 days after an acute myocardial infarction. The ventilator settings are VT 500 mL, IMV rate 8 breaths/min, FIO2 0.5, and PEEP/CPAP 5 cm H2O. ABG results on these settings are pH 7.37, PaCO2 36 mm Hg, PaO2 78 mm Hg, and SpO2 93%.The patient currently meets all criteria for weaning and is placed on a T-piece. Within 10 minutes he develops restlessness, tachycardia, rapid, shallow breathing, and diaphoresis. The SpO2 drops from 93% to 90%, and the pulmonary artery occlusion pressure rises from 12 to 17 mm Hg. The patient does not complain of chest pain and has no dysrhythmias.What do you think is responsible for the failed weaning attempt?

The flow–volume loop below is representative of which of the following conditions?