Update) | Q&A | Grade A | 100% Correct (Verified Answers) – Chamberlain
University
Subject: Traumatic Orthopedics – NR574 FINAL EXAM Week 8
Source: Chamberlain University College of Nursing – Current Curriculum
Format: Q&A Guide with Rationale • Pelvic Fractures • Compartment Syndrome • Extremity Fractures
1: What serves as a border for the intrapelvic organs and plays a critical role in trunk stabilization
and mobility of the hip joints?
A. The pelvic ring
B. The sacrum
C. The acetabulum
D. The pubic symphysis
Correct Answer: A. The pelvic ring
1. The pelvic ring provides structural support for pelvic organs.
2. It connects the axial skeleton to the lower extremities.
3. Pelvic ring fractures can cause significant hemorrhage.
2: The posterior ring of the pelvis consists of which structures?
A. The two sacroiliac joints (SI joints) and the sacral bone
B. The pubic symphysis and the pubic rami
C. The acetabula and the iliac crests
D. The coccyx and the ischial tuberosities
Correct Answer: A. The two sacroiliac joints (SI joints) and the sacral bone
1. The posterior ring is the weight-bearing portion of the pelvis.
2. Injuries to the posterior ring are often unstable and associated with hemorrhage.
3. The sacroiliac joints are strong but can be disrupted in high-energy trauma.
3: The anterior ring of the pelvis extends from which structures?
A. The anterior columns of the acetabula along the pubic rami to the symphysis
B. The sacroiliac joints to the iliac crests
C. The sacrum to the coccyx
D. The ischial tuberosities to the pubis
Correct Answer: A. The anterior columns of the acetabula along the pubic rami to the symphysis
1. The anterior ring includes the pubic rami and symphysis.
2. Anterior ring fractures are common in pelvic trauma.
3. These fractures may be stable or unstable depending on posterior ring involvement.
, 4: Shareena is a 32-year-old female involved in a high-speed MVC. She is minimally responsive,
pale, cool, diaphoretic. Vital signs: BP 88/46, HR 128, RR 24, SpO2 94%. She has significant pelvis
and lower extremity deformities. What is the priority for Shareena?
A. Order a CT of the abdomen and pelvis
B. Check a CBC
C. Bind her pelvis
D. Order a fluid bolus of 1 liter normal saline
Correct Answer: C. Bind her pelvis
1. Shareena has hemorrhagic shock from pelvic trauma.
2. Pelvic binding reduces pelvic volume and may decrease bleeding.
3. Fluid boluses can worsen outcomes by diluting clotting factors and increasing blood pressure,
which can dislodge clots.
5: What is the most common reversible cause of death in clients with pelvic fractures?
A. Hemorrhage
B. Sepsis
C. Fat embolism
D. Pulmonary embolism
Correct Answer: A. Hemorrhage
1. Mortality in the first 24 hours of pelvic fracture is almost always related to uncontrolled
bleeding.
2. The pelvic cavity can accommodate large volumes of blood.
3. Early hemorrhage control is critical.
6: What is the first diagnostic tool used for a patient with suspected unstable pelvic fracture?
A. FAST exam (Focused Assessment with Sonography for Trauma)
B. CT scan of the abdomen and pelvis
C. Plain x-ray of the pelvis
D. MRI of the pelvis
Correct Answer: A. FAST exam (Focused Assessment with Sonography for Trauma)
1. FAST exam rapidly assesses for free fluid (blood) in the abdomen and pelvis.
2. Positive FAST in an unstable patient indicates need for emergent laparotomy.
3. It can be performed at the bedside without moving the patient.