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Question 1
Which statement best describes the energy balance equation and weight implications?
Correct Answer:
Energy intake equals energy expenditure; a positive balance leads to weight gain, and a negative balance leads to weight loss
Explanation:
The main concept here is that body weight changes when calories in differ from calories out. The energy balance equation describes how the change in stored energy corresponds to this difference: energy intake minus energy expenditure. When intake is greater than expenditure (positive balance), excess energy is stored, mostly as fat, leading to weight gain. When expenditure exceeds intake (negative balance), stored energy is used, leading to weight loss. When intake and expenditure are equal, weight remains stable. The option that best matches this idea—linking energy balance to weight change with positive balance causing gain and negative balance causing loss—captures the core relationship between calories consumed and calories burned and their effect on weight. The other choices either misstate the relationship or overlook the role of the different components of energy expenditure, such as physical activity and the thermic effect of food, not just basal metabolic rate.
Question 2
Which of the following is a good dietary source of iron?
Correct Answer:
Dried beans
Explanation:
Iron in plant foods is non-heme iron, which is absorbed less efficiently than animal-based heme iron but can still meet substantial needs when eaten regularly. Dried beans pack a relatively high amount of non-heme iron per serving (roughly 3–6 mg per cooked cup, depending on the type), making them a solid dietary source. They’re also versatile, affordable, and provide fiber and protein, which adds to their nutritional value. To boost absorption of this iron, pair beans with vitamin C–rich foods or acidic ingredients (like bell peppers, tomatoes, or citrus) in the same meal. The other options don’t offer as much iron themselves—orange provides vitamin C but little iron, milk brings calcium that can hinder iron absorption, and rice supplies less iron overall—so dried beans stand out as a good iron source.
Question 3
Which seafood is a high-iron option?
Correct Answer:
Oysters
Explanation:
Iron from animal foods comes in a form that our bodies absorb more readily, known as heme iron. Among these seafoods, oysters stand out because they contain a relatively high amount of iron in a single serving. That makes them a more efficient source of usable iron than the other options listed, which tend to have lower iron content. Salmon, tuna, and shrimp do provide nutrients, but their iron content is generally not as high, so they aren’t as strong for boosting iron intake. So oysters are the best high-iron option here.
Question 4
Which of the following lists the risks/complications of TPN?
Correct Answer:
Infection, hyper/hypoglycemia, fluid overload, electrolyte imbalance
Explanation:
TPN carries infectious, metabolic, and fluid/electrolyte risks because nutrients are infused through a central venous catheter and are delivered in concentrated solutions. The catheter access creates a significant risk of infection, including line sepsis, since the system provides a direct entry to the bloodstream. The high glucose load and amino acids can disrupt metabolic stability, leading to hyperglycemia or hypoglycemia if the rate or caloric content isn’t carefully matched to the patient’s needs. Large fluid volumes and electrolyte-containing solutions raise the chance of fluid overload and electrolyte disturbances, which can affect heart function, blood pressure, and cellular processes. These issues are interconnected and require close monitoring of glucose, electrolytes, fluid status, and line integrity. Other options describe only a single issue and miss the broad, multifaceted risk profile of TPN.
Question 5
Before feeding through an NG tube, what is the first action?
Correct Answer:
Check placement
Explanation:
Verifying the tube’s placement is the first step before you start any feeding. Feeding into the lungs or another wrong location can cause dangerous complications like aspiration pneumonia, so you want to be certain the tube tip is in the stomach before delivering formula. The most reliable method is imaging that confirms the tube’s path and final position, but if imaging isn’t immediately available, clinicians may assess placement indirectly by aspirating gastric contents and checking the pH, keeping in mind this method isn’t perfect. After placement is confirmed, you would flush the tube with water to maintain patency and then proceed with the feeding or residual checks as your protocol dictates. Auscultating bowel sounds does not indicate where the tube is and isn’t used to verify placement.
Question 1
Exam overview

About this Exam

This course, NURS2001 D440, is a cornerstone of WGU’s nursing curriculum, specifically designed for future healthcare professionals aiming to integrate evidence-based nutritional science into patient care. It is a fundamental course for nursing students, ensuring they have the knowledge required to promote health and wellness through dietary guidance. This practice exam is an essential preparatory tool, built to simulate the rigor and format of the final objective assessment. It is engineered for students who need to validate their understanding of essential nutrients, dietary guidelines, and nutritional strategies for diverse populations.

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Additional Information

What the Course Entails and Exam Details

The Health and Wellness Through Nutritional Science course covers a broad spectrum of topics essential for modern nursing practice. Students delve into the core areas of nutritional biochemistry, digestion, and absorption, understanding how the body utilizes macronutrients (carbohydrates, proteins, fats) and micronutrients (vitamins and minerals). The curriculum emphasizes the application of this knowledge across the lifespan, from infancy to older adulthood, addressing the unique nutritional needs of each stage. Furthermore, the course explores critical themes such as therapeutic diets for disease management, cultural and religious influences on eating habits, and the environmental factors affecting nutritional status. The exam, and by extension this practice test, assesses your ability to analyze patient cases, apply dietary guidelines, and provide effective nutritional education within a nursing framework.


What to Expect in the Final Exam

While this practice exam helps you identify areas of strength and weakness, the final WGU Objective Assessment for NURS2001 D440 is a formal proctored exam. Students can typically expect a multiple-choice format, designed to test both knowledge recall and critical application of concepts to clinical scenarios. The passing score varies slightly but is usually set around the 70-75% mark, which represents a demonstrated competence. Students are typically allotted about two hours (120 minutes) to complete the assessment. It is important to remember that all WGU Objective Assessments are high-stakes exams. The final exam must be taken through WGU’s approved online proctoring service (which may utilize a Pearson VUE-approved platform structure, though taken remotely) or, in some specific instances, at an authorized brick-and-mortar testing center.


How to Study and Exam Centers

Effective preparation for this course and its final exam is key. Begin by thoroughly working through the coursework provided in the WGU student portal. Utilize all the integrated digital resources, including the textbook, interactive modules, and any available faculty-led study groups. This practice exam should be used as a final diagnostic tool, taken under timed conditions to simulate the actual test environment. Analyze your practice results to identify specific topics (e.g., specific vitamin deficiencies, pediatric nutrition requirements) that need additional review. When you are confident, schedule your proctored assessment. The primary way WGU students take their exams is through their secure online portal, utilizing a webcam for remote proctoring. However, for those who require a physical location, WGU may utilize approved partners, such as a Pearson VUE-authorized test center, or recognized academic testing centers that provide secure environments.


Job Opportunities from the Course

Mastering the content of NURS2001 D440 is a crucial step toward achieving your Bachelor of Science in Nursing (BSN) or another nursing degree. This knowledge is immediately applicable in the field and helps prepare you for certification exams like the NCLEX-RN. While the course itself is not a stand-alone professional certification, the skills and knowledge it imparts are critical for dozens of career paths within healthcare. A solid foundation in nutritional science unlocks specific roles where dietary intervention is primary, and enhances overall nursing practice in almost all acute and long-term care settings. Careers that directly benefit from this advanced understanding of health and wellness through nutrition include:

  • Registered Nurse (RN) – General Practice

  • Registered Nurse (RN) – Pediatrics

  • Registered Nurse (RN) – Geriatrics

  • Nurse Educator

  • Clinical Nurse Specialist in Nutrition

  • Community Health Nurse

  • Dietetic Technician (DTR)

  • Wellness Coach / Corporate Health Consultant

  • Public Health Nurse

  • Research Nurse for Clinical Nutrition Trials

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