Which of the following types of specimens is most frequently collected for analysis?

You are transporting a patient to a tertiary trauma center. The patient is receiving blood and has sustained trauma the local center cannot handle. You notice that the patient has begun to develop tachycardia, hives, and a fever. You suspect:

A) hypovolemia B) a normal response to a transfusion. C) transfusion reaction. D) anaphylaxis.

You have been called for a 63-year-old woman with slurred speech and right-arm weakness. On arrival, the patient informs you that the slurred speech and weakness have resolved. Since your assessment reveals no deficits, the patient insists on signing a refusal. Which one of the following statements should you make prior to having her sign?

A) "It would be best to start taking one baby aspirin every day; this will decrease the chance of this happening again." B) "Sometimes seizures present this way; call your doctor in the morning to schedule an appointment." C) "If this happens again, wait 10 minutes to see if you are okay. If the symptoms persist, call 911." D) "You really need to be evaluated in the hospital. You are at significant risk for a future stroke."