Which of the following signs is usually the first clinical manifestation of breast cancer?
a. Dimpling
b. Nipple discharge
c. Chest pain
d. A painless lump
ANS: D
The first sign of breast cancer is usually a painless lump. Dimpling, nipple discharge, and chest pain are later signs.
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You have been called for a 71-year-old male with seizure activity. At the patient's side, you find him lying motionless on the floor of his bedroom with a family member performing chest compression only CPR. In this situation, your immediate action would be to:
A) open the airway and begin positive pressure ventilation. B) stop CPR and feel for a carotid pulse. C) take over CPR and attach the automated external defibrillator. D) continue CPR and call for advanced life support assistance.
A comparison of functional residual capacity measured by body plethysmography with that measured by
nitrogen washout reveals that the measurement obtained during the nitrogen washout test is less than that during body plethysmography. This discrepancy is most likely caused by which of the following? a. Poor technique c. Restrictive lung disease b. Severe air-trapping d. Directional valve malfunction
Which of the following statements are TRUE about vitamin K?
1. It plays an important role in bone mineral density. 2. The best food sources are pork and muscle meat. 3. Deficiencies are common in vegetarians. 4. Certain medications, such as warfarin act as vitamin K antagonists. A) 2, 4 B) 1, 4 C) 1, 3 D) 2, 3
The other characteristic in second-degree type I block is that the impulse is not conducted and the ________ is dropped.
A. QRS B. PVC C. ST D. AED