SMS Postural Support and Positioning 2

Question 1

What is the 90-90-90 rule in seating?

Accepted Answer

Hips, knees, and ankles each at 90-degree angles

Answer

90% weight through ischials, 90-degree knees, 90-degree ankles

Answer

Seat tilt of 90 degrees, back angle of 90 degrees, footrest at 90 degrees

Answer

90 minutes maximum seated time

Question 2

A simulator is used during the seating evaluation primarily to:

Accepted Answer

Assess positioning tolerance and simulate equipment configurations before ordering

Answer

Determine insurance reimbursement eligibility

Answer

Train caregivers on transfers

Answer

Measure spasticity levels

Question 3

Which muscle group tightness most commonly contributes to anterior pelvic tilt in sitting?

Accepted Answer

Hip flexors

Answer

Hamstrings

Answer

Hip abductors

Answer

Plantarflexors

Question 4

Pelvic obliquity in sitting is best described as:

Accepted Answer

One side of the pelvis higher than the other

Answer

Forward tilting of the pelvis

Answer

Backward rotation of both iliac crests

Answer

Excessive lateral hip rotation

Question 5

When assessing a client's sitting balance, the SMS clinician should first evaluate:

Accepted Answer

Supported and unsupported sitting ability

Answer

Wheelchair model preferences

Answer

Insurance funding source

Answer

Home environment accessibility

Question 6

Which term describes a pelvis that has rotated forward so one side is more anterior than the other in the horizontal plane?

Accepted Answer

Pelvic rotation

Answer

Pelvic obliquity

Answer

Anterior pelvic tilt

Answer

Posterior pelvic tilt