Free AEMCA Trivia Questions and Answers

Question 1

The head injury standard states that we should hyperventilate an adult, child, or newborn at what rate if ETCO2 is not available.

Accepted Answer

adult 20 breaths/min, child 25 breaths/min , infant 30 breaths/min

Answer

When ETCO2 monitoring is unavailable, the head injury standard for hyperventilation rates are 20 breaths/min for an adult, 25 breaths/min for a child, and 30 breaths/min for an infant, reflecting the higher baseline respiratory rates of younger patients. The other options describe receptor selectivity, beta-blocker uses, and the 6 Ps of compartment syndrome.

Question 2

How many lumbar vertebrae are there in a human?

Accepted Answer

5

Answer

The human lumbar spine has 5 vertebrae (L1-L5), located in the lower back. The other options are a hormone (glucagon), Parkinson's symptoms, and a volume measurement, none of which answer an anatomical count.

Question 3

What is myasthenia gravis, and how does it come about?

Accepted Answer

An chronic autoimmune neuromuscular disorder that causes weakness in the skeletal muscles caused by a defect in nerve impulses at the neuromuscular junction; the body attacks the receptors for acetylcholine

Answer

Myasthenia gravis is a chronic autoimmune neuromuscular disorder causing skeletal muscle weakness because the body produces antibodies that attack acetylcholine receptors at the neuromuscular junction, impairing nerve-to-muscle signal transmission. This is why weakness worsens with activity. The other options describe patch-point situations, antihistamine action, and absence/focal seizures.

Question 4

What is stimulated by parasympathetic activity?

Accepted Answer

pupil constriction, increased gastric mobility, bradycardia, increased in secretion , bronco-constriction

Answer

Parasympathetic ('rest and digest') activity stimulates pupil constriction, increased gastric motility, bradycardia (slowed heart rate), increased glandular secretions, and bronchoconstriction. These conserve energy and promote digestion. The other options describe opioid toxidrome, the three collisions of trauma, and bone canals.

Question 5

Where does adult haematopoiesis take place?

Accepted Answer

pelvis, vertebral column, and cranium

Answer

In adults, hematopoiesis (blood cell formation) occurs in the red bone marrow of the axial skeleton, primarily the pelvis, vertebral column, and cranium (along with the sternum and ribs). After childhood, marrow in the long bones becomes largely fatty and inactive. The other options list coronary arteries, opioid peptides, and structures emptying into the right atrium.

AEMCA - Advanced Emergency Medical Care Assistant Practice Test

AEMCA - Advanced Emergency Medical Care Assistant Practice Test

Free AEMCA Trivia Questions and Answers