During hypoxemia, the mucous membranes of the ____ are often the first areas to become cyanotic.
A. nose
B. lips and tongue
C. eyes
D. ears
Answer: B
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Which of the following statements about nitroglycerin is NOT true?
A) Nitroglycerin achieves its therapeutic effects by blocking the entry of calcium into the cells of smooth muscle. B) Nitroglycerin is poorly lipid soluble, which prevents it from passing through cell membranes, thereby prolonging its effects. C) Nitroglycerin primarily dilates veins and coronary vessels. D) Nitroglycerin commonly causes headache and orthostatic hypotension.
________ is a pictorial guide to the placement of leads.
A. Holter's triangle B. Holter's circle C. Einthoven's triangle D. Einthoven's circle
Deliberate miscoding of diagnoses and procedures can be
A. easily done. B. permissible in certain circumstances. C. considered fraud and abuse.
Traumatic asphyxia generally occurs when the pleural cavity on one side fills with air and displaces the lung and the heart toward the opposite side, thus compressing the opposite lung.
Answer the following statement true (T) or false (F)