In a large, prospective study comparing MI patients with and without chest pain, all of the following statements are true except:
a. Of all the patients with MI, 33% did not have chest pain on presentation to the hospital.
b. MI patients without chest pain had greater than twice the in-hospital mortality than patients with chest pain.
c. MI patients without chest pain were less likely to receive thrombolysis or primary angioplasty than those with chest pain.
d. Almost all of the MI patients without chest pain had diabetes.
All of the following are considered low-risk criteria for cervical spine fracture, except:
a. no evidence of intoxication/normal level of alertness.
b. lack of a painful, distracting injury.
c. age younger than 50 years.
d. absence of posterior midline cervical tenderness.
e. absence of a neurologic deficit.
Clopidogrel:
a. inhibits platelet function via cyclooxygenase inhibition.
b. is dosed twice daily.
c. has been associated with thrombotic thrombocytopenic purpura.
d. has a slower onset of therapeutic action than does ticlopidine.
Which of the following is the correct group of characteristics in the study by Haydel et al for predicting the need for cranial CT in minor head trauma (i.e., having at least one of the following)?
a. Headache, vomiting, age older than 60, intoxication, short-term memory deficit, evidence of trauma above the clavicles, or seizures
b. Headache, nausea, age older than 60, intoxication, short-term memory deficit, evidence of trauma above the clavicles, or seizures
c. Headache, vomiting, age older than 20, intoxication, short-term memory deficit, evidence of trauma above the clavicles, or seizures
d. Headache, nausea, age older than 20, intoxication, short-term memory deficit, evidence of trauma above the clavicles, or seizures
In a patient with AMI, primary PTCA is likely to be a superior therapy when compared with thrombolysis if:
a. the patient has no history of coronary artery disease.
b. primary PTCA can be performed within 120 minutes of patient arrival.
c. the patient can undergo primary PTCA within 90 minutes of arrival.
d. the balloon catheter can be placed across the culprit lesion within 90 minutes of arrival.