A major predictor of poor prognosis for Ewing sarcoma is:
a. age of onset.
b. size of tumor.
c. presence of metastasis.
d. gender of child.
ANS: C
Metastasis at diagnosis is another poor prognostic indicator, with 5-year survival rate dropping to under 40%.
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Which are possible chronic threats to firefighters' health?
A) Sudden waking and sleep deprivation B) Stress C) Diesel exhaust exposure D) All of the above
Which stage(s) of sleep is (are) shown in the figure?
a. Stage 1 sleep c. Stages 3 and 4 sleep b. Stage 2 sleep d. Rem sleep
Which of the following is true about the biomechanical properties of a ligament (or tendon) if the width of the ligament is doubled?
a. Greater elongation before failure b. Less elongation before failure c. Increased strength before failure d. Decreased strength before failure
A 17-year-old woman presents with acute abdominal pain while at a party with her husband. You arrive at the scene, assess the patient, and advise her of the need for EMS treatment and transport. However, the patient, who is conscious and alert, refuses EMS treatment and transport and states that her husband will transport her in his car. You should:
A) advise her of the potential risks of refusing EMS treatment and transport. B) begin treatment using implied consent, because she is under 18 years of age. C) ensure that she has decision-making capacity and then obtain a signed refusal. D) accept her refusal because the fact that she is married makes her emancipated.