Q- Which of the following is the earliest EKG sign of myocardial infarction?
A- Inverted T-wave
B- Large peaked T-wave
C- Pathological Q-wave
D- S-T elevation
B- Large peaked T-wave- The earliest EKG change in acute myocardial infarction is the appearance of hyperacute (large, peaked) T-waves. ST elevation occurs shortly after. T-wave inversion and pathological Q-waves appear later as the infarction evolves.
Q- Which of the following is the most common complication of otitis media?
A- Brain abscess
B- Drum perforation
C- Hearing loss
D- Meningitis
C- Hearing loss- The most common complication of otitis media is conductive hearing loss, usually temporary due to fluid buildup in the middle ear. Drum perforation, meningitis, and brain abscess are less common and occur in more severe or untreated cases.
Q- Which of the following characteristics differentiates cephalohematoma from caput succedaneum in a newborn?
A- Cephalohematoma crosses suture lines
B- Cephalohematoma does not cross suture lines
C- Cephalohematoma disappears in the first few days
D- Cephalohematoma will never calcify
B- Cephalohematoma does not cross suture lines- A cephalohematoma is a subperiosteal hemorrhage that is limited by suture lines, so it does NOT cross them. In contrast, caput succedaneum is subcutaneous edema that can cross suture lines and resolves quickly.
Remarkable answers, thanks for the insight.