Select the best statement from the following choices to describe the pathogenesis of PNH
a. Increased hemolytic episodes are produced as a result of complement binding to erythrocytes via IgG antibodies in cold temperatures.
b. Increased hemolytic episodes are produced as a result of missing cell membrane proteins that regulate complement activation.
c. Increased hemolytic episodes are produced as a result of missing enzymes necessary for ATP production in erythrocytes.
d. Increased hemolytic episodes are produced as a result of initiation of an immune response against erythrocytes.
Correct Answer: B
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Medium-pressure water mist systems are generally used for _______________
a. total-flooding applications b. local applications c. Class D fires d. designs needing greater than 500 psi (3,447 kPa) of pressure
When setting up preoperative appointments and tests for a patient,
A) schedule all tests and procedures as close together as possible. B) remember that patients may find too many appointments in one day tiring. C) schedule tests and procedures as far apart as possible. D) only take into consideration the time frame during which the physician wants them done.
The mandibular second molar antagonists are:
A. maxillary second premolar and first molar B. maxillary cuspid and first premolar C. maxillary first and second molars D. maxillary first and second premolar
An advantage of patient education is that ________.
A. anyone can educate the patient, even a friend B. it results in greater compliance with prescribed treatment programs C. it slows the recovery period from illness, disease, or injury D. patients previously educated can educate other patients E. it allows patients to take a passive role in their medical care