NAHP Updated NRCMA Exam Questions and Answers by wilbur

When collecting specimens for a white blood count (WBC), you would use a tube that containsEDTA (ethylenediaminetetraacetic acid)as an anticoagulant. EDTA prevents blood from clotting by binding calcium ions, which is crucial for maintaining the integrity of the blood sample for accurate WBC analysis.

During an eye examination using the Snellen's eye chart, the patient shouldkeep both eyes open, but cover one of them. This method ensures that the uncovered eye is tested for visual acuity without the influence of the other eye. The patient will then switch and cover the other eye to test it individually.Reference:Nationally Registered Certified Medical Assistant study materials, ophthalmology examination protocols.

A condition characterized by frequent liquid stools isdiarrhea. Diarrhea involves the frequent passage of loose or watery stools and can be caused by various factors, including infections, food intolerances, or certain medications.Reference:Nationally Registered Certified Medical Assistant study materials, gastrointestinal disorder references.

Thelithotomy positionis used when a patient is having avaginal examination. In this position, the patient lies on their back with their hips and knees flexed, and their feet placed in stirrups. This position provides the best access for pelvic and vaginal examinations, as well as certain surgical procedures.Reference:Nationally Registered Certified Medical Assistant study materials, clinical examination guidelines.