Which of the  following is an example of a preanalytical error?

A patient has the phenotype O, DCEe.  If the patient requires multiple packed red blood cell transfusions from different group O positive donors, the patient could theoretically produce which of the following antibodies:

What is the most likely blood type of Patient 1? Image 70_E3(2).jpg

Which of the following statements about Direct Antiglobulin Testing (DAT) is incorrect?

On the Quotient 10 Cell Antibody ID Panel for Sterling Malory Archer in cell line #1, is Fya expressed homozygously or heterozygously?

When working on solving an antibody panel, which of the following steps would be performed first?

In carcinoma of the prostate, which of the following enzymes is most likely increased?

A creatinine clearance is performed on a hospitalized patient from 8 AM Monday until 8 AM Tuesday.  Which of the following actions could cause an error in the results obtained?

How should you position an alert patient who presents with slurred speech, facial droop, and right side paralysis?

Enroute Phase Scenario:  The AEMT is dispatched to a community dental office for a 28-year-old female patient who is reportedly acting strangely and refusing to allow anyone near her. The call was received at 1440. The estimated response time is 9 minutes. The AEMT is partnered with an EMT, and a BLS fire department engine crew is also en route. Law enforcement has been requested but has not yet arrived on scene. It is overcast and 52°F (11°C) on a mild afternoon. Traffic in the area is moderate. The patient is located in a private dental suite within the office. The nearest hospital is 10 minutes from the scene.  OnScene Phase Scenario:  The patient (approximately 40 kilograms) is standing in the corner of a private dental suite, mumbling incoherently and clutching her chest. She appears visibly frightened and refuses to sit, make eye contact, or respond to verbal commands. The dental staff states that the patient was agitated upon arrival and repeatedly claimed that someone was “chasing her.” The patient has a history of anxiety and a prior psychiatric admission, and she takes sertraline for depression. She has no known drug allergies. There are no signs of trauma. The patient has not attempted to harm herself or others but is refusing to answer questions or follow instructions. Law enforcement has arrived and is standing outside the room. The patient’s level of consciousness appears intact, but her behavior is paranoid and disorganized. No vital signs have been obtained at this time.  What is the most appropriate next step for the AEMT when the patient refuses to answer questions or comply with directions?