Nokea
A nurse is caring for a client diagnosed with atherosclerosis. Which of the following is considered a risk factor for the development of this disorder?
- A. Diet high in vitamin K
- B. Low HDL-C/High LDL-C
- C. High HDL-C/Low LDL-C
- D. Vegan diet
Correct Answer: B
Rationale: Atherosclerosis loves lipids low HDL (good cholesterol) and high LDL (bad cholesterol) pile plaque, a prime risk factor driving vessel narrowing. Vitamin K aids clotting, not plaque. High HDL/low LDL protects. Vegan diets cut fats, lowering risk. Nurses flag lipid imbalance, pushing statins or diet shifts, a cholesterol-fueled root of this vascular scourge.
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A 3-year-old girl with a Wilms tumor is returning to the unit after a simple nephrectomy. Which of the following actions have the highest priority in caring for this child?
- A. Maintaining NPO.
- B. Monitoring the BP every 2 hours.
- C. Turning her every 2 hours.
- D. Administering pain medication every 4 hours.
Correct Answer: B
Rationale: After a nephrectomy for Wilms tumor, monitoring blood pressure (BP) every 2 hours is the highest priority because kidney removal disrupts renin-angiotensin regulation, risking hypo- or hypertension, especially in a young child with one remaining kidney. Using the ABCs (airway, breathing, circulation), BP falls under circulation, a critical postoperative focus to detect shock or fluid imbalance early. Maintaining NPO is temporary post-anesthesia but shifts to hydration once awake, less urgent than BP. Turning every 2 hours prevents pressure ulcers, but a mobile 3-year-old post-simple nephrectomy likely moves independently unless sedated, lowering its priority. Pain medication is key but ranks lower (e.g., G' in extended ABCs) than circulation. Frequent BP checks ensure stability, aligning with nursing's role in pediatric surgical care to prevent complications in a child adapting to single-kidney function.
The nurse knows that hemolytic to blood transfusions occur most often when the first milliliters of the infusion.
- A. 125
- B. 50
- C. 100
- D. 75
Correct Answer: B
Rationale: Hemolytic reactions strike early 50 mL often triggers as mismatched blood clashes, a rapid antigen-antibody storm. Later volumes (75-125) build on it; 100's common but not peak. Nurses watch those first drops, stopping at 50 mL's hint of fever or pain, a tight window in this transfusion trap.
Triglycerides in VLDL particles can be passed on to HDL particles. Question: Which enzyme mediates this process?
- A. Cholesteryl ester transfer protein (CETP)
- B. Hepatic lipase (HL)
- C. Hormone sensitive lipase (HSL)
- D. Lipoprotein lipase (LPL)
Correct Answer: A
Rationale: CETP swaps triglycerides VLDL to HDL, not lipase cutters. Nurses know this, a chronic lipid shuffle.
Appropriate statements concerning radiology and trauma interventional radiology include:
- A. To rule out injury of the cervical spine in the unconscious patient, application of a protocol involving a computed tomography (CT) scan to the neck is recommended.
- B. A FAST (Focused Assessment with Sonography for Trauma) scan is a specific investigation for assessment of intraperitoneal bleeding.
- C. In a patient who is persistently hypotensive in the emergency department despite adequate fluid resuscitation, radiological interventions to treat bleeding caused by a pelvic fracture are not recommended.
- D. Interventional radiology has a role in the management of injuries to the liver, kidney and spleen.
Correct Answer: A
Rationale: Trauma radiology optimizes diagnosis and intervention. CT is the gold standard for cervical spine assessment in unconscious patients, per NICE guidelines, offering high sensitivity for fractures/ligamentous injury versus plain films. FAST scans detect free fluid (e.g., blood) intraperitoneally but lack specificity positive findings need confirmation (e.g., CT). Persistent hypotension with pelvic fracture warrants interventional radiology (e.g., embolization), not dismissal contrary to the statement. Interventional radiology manages solid organ injuries (liver, kidney, spleen) via embolization, reducing surgical need. Staffing in radiology matches theatre for critical cases. CT's diagnostic precision in cervical spine trauma ensures timely, accurate management, critical in unconscious patients where clinical exam is unreliable.
Chronic obstructive pulmonary disease (COPD) is associated with:
- A. Skeletal muscle dysfunction.
- B. Mean pulmonary arterial pressure of ≥ 25 mm Hg.
- C. Significant reversibility in airflow limitation with bronchodilator therapy.
- D. Depression.
Correct Answer: A
Rationale: COPD is a progressive lung disease characterized by airflow limitation that is not fully reversible. Skeletal muscle dysfunction is a well-documented extrapulmonary manifestation due to systemic inflammation, oxidative stress, and reduced physical activity, leading to muscle wasting and weakness. Elevated mean pulmonary arterial pressure (≥ 25 mm Hg) defines pulmonary hypertension, which can occur secondary to COPD but is not a universal feature. Significant reversibility in airflow limitation is more typical of asthma, not COPD, where bronchodilator response is limited. The FEVâ‚/FVC ratio in COPD is typically <0.7, not >0.7, making that option incorrect. Depression is common in COPD patients due to chronic illness and reduced quality of life, but it's not a defining feature. Among these, skeletal muscle dysfunction is most consistently associated with COPD pathophysiology, reflecting its systemic impact beyond the lungs.