NR569 / NR 569 Midterm Exam (Latest 2024 / 2025): Differential Diagnosis in Acute Care Practicum |Weeks 1-4|Questions and Verified Answers| 100% Correct - Chamberlain

Midterm Exam: NR569/ NR 569 (Latest 2024 / 2025 Update) Differential Diagnosis in Acute Care Practicum Exam Review|Week 1-4| Questions and Verified Answers| 100% Correct| Grade A - Chamberlain Q: Five Densities of Radiographic Densities Answer: 1.Air ([MOST RADIOLUCENT] blackest - least dense) 2.Fat 3.Water (soft tissue) 4.Mineral (Bone) 5.Metal ([MOST RADIOPAQUE] - whitest- MOST DENSE) **Listed from least to most dense** Q: How does air appear on x-ray? Answer: Air appears the blackest on radiograph *ABSORBS THE LEAST XRAY* Q: How does fat appear on x-ray? Answer: Fat appears as the darkest shade of GREY - **Lighter than air but DARKER than soft tissue/fluid** Q: How do soft tissue and fluids appear on x-ray? Answer: Both fluid and soft tissue have the same density on conventional radiographs. **It is impossible to differentiate blood from muscle inside the heart on x-ray.** Q: How do minerals (specifically calcium = bone) appear on x-ray? Answer: Most dense NATURALLY occurring material - absorbs most of the x-ray - lightest shade of grey. Q: How does metal appear on x-ray? Answer: Metal is the most dense material viewed on x-ray - absorbs all of the x-ray - BRIGHTEST WHITE Q: What are the diagnostic utilities of radiographic studies in health care? Answer: Diagnostic radiology uses these imaging results to identify a wide range of problems, from broken bones to heart conditions and blood clots. Interventional radiology also uses imaging such as CT scans, MRI and ultrasounds to guide medical procedures. Q: What does USPSTF stand for? Answer: United States Preventive Services Task Force Q: USPSTF Guideline Ratings Answer: Grade A: USPSTF recommends this service. There is a high certainty that the net benefit is substantial; Offer or provide this service. - Grade B: The USPSTF recommends this service There is high certainty that the net benefit is moderate or there is moderate certainty that the net benefit is moderate or substantial; Offer or provide this service. - Grade C: The USPSTF recommends SELECTIVELY offering or providing this ser- vice to individual patients based on professional judgement and patient preferences. There is at least moderate certainty that the net benefit is small; Offer or provide this service for selected patients depending on individual circumstances. - Grade D: The USPSTF recommends against this service. There is moderate or high certainty that the service has no net benefit or that the harms outweigh the benefits; Discourage the use of this service. - I Statement: The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of the service. Evidence is lacking, of poor quality, or conflicting, and the balance of benefits and harms cannot be determined; Read the clinical considerations section of USPSTF recommendation statement. If the service is offered, patients should understand the uncertainty about the balance of benefits and harms. Q: Macule Answer: Description: Flat, in the plane of the skin, nonpalpabl - Potential Cause: Drug rash, viral exanthema, syphilis, HIV Q: Papule Answer: Description: Small, solid, raised, palpable - Potential Cause: Viral, allergic reaction, stigmata of endocarditis Q: Nodule Answer: Description: Larger papule, solid - Potential Cause: Erythema nodoscum, fungal or atypical mycobact