16TH EDITION
• AUTHOR(S)KEVIN T. PATTON; GARY
A. THIBODEAU
1️⃣
Reference
Ch. 1 — Introduction to the Body — Anatomical Position &
Directions
Question Stem (2–4 sentences)
A patient is brought to the ED after a fall and the nurse
documents a laceration on the forearm as “located on the
lateral surface, proximal to the wrist.” During handoff the
surgeon requests clarification for operative planning. Which
description most accurately identifies the laceration location
relative to standard anatomical position?
Options
A. On the thumb-side of the forearm, closer to the elbow than
the wrist.
B. On the little-finger side of the forearm, closer to the wrist
than the elbow.
,C. On the posterior surface of the forearm, nearer the wrist.
D. On the anterior surface of the forearm, at the distal end near
the wrist.
Correct Answer
A
Rationale — Correct (3–4 sentences):
"Lateral" in anatomical position refers to the side farther from
the midline; for the forearm, the lateral side is the radial/thumb
side. "Proximal to the wrist" means closer to the elbow than the
wrist. Combining both gives the thumb-side of the forearm
nearer the elbow. This description aligns with the standardized
usage nurses must use for clear surgical planning.
Rationale — Incorrect Options (1–2 sentences each):
B. Medial or ulnar side corresponds to the little-finger side, not
lateral.
C. Posterior specifies the back (dorsal) surface; lateral vs.
posterior are different axes.
D. Anterior and distal contradict "lateral" and "proximal" in the
stem.
Teaching Point (≤20 words)
Lateral = away from midline (thumb side on forearm); proximal
= nearer trunk.
Citation
Patton, K. T., & Thibodeau, G. A. (2020). Structure & function of
the body (16th ed.). Ch. 1.
,2⃣
Reference
Ch. 1 — Introduction to the Body — Planes of the Body
Question Stem (2–4 sentences)
During a focused neurological exam, a patient is asked to
abduct and adduct the fingers while the nurse observes
movement in a single plane. Which anatomical plane is the
nurse observing when evaluating medial–lateral finger
movement, and why is this plane clinically relevant for
documenting range of motion?
Options
A. Transverse plane — it separates superior and inferior
movements relevant to finger flexion.
B. Coronal (frontal) plane — it divides anterior and posterior
and captures medial–lateral movement.
C. Sagittal plane — it divides left and right and shows medial–
lateral motion.
D. Oblique plane — it best isolates rotational movement of
individual digits.
Correct Answer
B
Rationale — Correct (3–4 sentences):
Medial–lateral (abduction/adduction) movements occur in the
coronal (frontal) plane, which divides the body into anterior and
, posterior portions. Observing finger abduction/adduction in this
plane documents lateral displacement from the midline of the
hand. Clinically, using plane terminology standardizes ROM
documentation across providers and aids in tracking changes
over time. This avoids misinterpretation that could affect
rehabilitation plans.
Rationale — Incorrect Options (1–2 sentences each):
A. Transverse plane separates superior/inferior and is
associated with rotational or horizontal movements, not
medial–lateral.
C. Sagittal plane divides left/right and tracks flexion/extension,
not abduction/adduction.
D. Oblique plane is nonspecific and not the standard descriptor
for medial–lateral finger motion.
Teaching Point (≤20 words)
Abduction/adduction occur in the coronal (frontal) plane — use
correct plane language for ROM documentation.
Citation
Patton, K. T., & Thibodeau, G. A. (2020). Structure & function of
the body (16th ed.). Ch. 1.
3️⃣
Reference
Ch. 1 — Introduction to the Body — Body Cavities