Nokea
Which of the following statements regarding weight regulation is FALSE?
- A. The reward system of weight regulation cannot override the signals from the homeostatic weight regulation circuitry
- B. Weight regain after weight loss is physiological and not necessarily due to a failure of conscious efforts to lose weight
- C. Liking and wanting of food are subconscious processes
- D. In human studies, functional MRI (fMRI) studies have shown overactivation of reward-encoding brain regions and/or deficiency in cortical inhibitory networks in obese people
Correct Answer: A
Rationale: Reward can trump homeostatic signals dopamine's pull often beats leptin's brake, a false claim busted by obesity's hedonic drive. Regain's wired, liking/wanting's deep, fMRI shows reward overdrive, and corticolimbic rules non-homeostatic. Clinicians tackle this override, a chronic quirk in weight's tug-of-war.
You may also like to solve these questions
What is the most influential source of self-efficacy?
- A. Mastery
- B. Affective states
- C. Verbal persuasion
- D. Vicarious experience
Correct Answer: A
Rationale: Self-efficacy's backbone is mastery past wins breed belief, a nurse's gold for chronic self-care push. Watching others, pep talks, or mood sway less; doing it trumps all, a confidence anchor in illness battles.
The nurse is caring for a patient who has just been given a 6-month prognosis following a diagnosis of extensive stage small-cell lung cancer. The patient states that he would like to die at home, but the team believes that the patient's care needs are unable to be met in a home environment. What might you suggest as an alternative?
- A. Discuss a referral for rehabilitation hospital
- B. Panel the patient for a personal care home
- C. Discuss a referral for acute care
- D. Discuss a referral for hospice care
Correct Answer: D
Rationale: Extensive small-cell lung cancer with a 6-month clock screams end-stage hospice fits, offering comfort-focused care in settings like home (with support), hospitals, or community sites. It matches his wish to avoid aggressive fixes, unlike rehab (for recovery) or acute care (for crises). Personal care homes lack the palliative punch needed here. Hospice blends patient and family needs, easing symptoms like pain or dyspnea, a cornerstone in oncology for terminal cases where quality trumps quantity.
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.
An oncology patient will begin a course of chemotherapy and radiation therapy for the treatment of bone metastases. What is one means by which malignant disease processes transfer cells from one place to another?
- A. Adhering to primary tumor cells
- B. Inducing mutation of cells of another organ
- C. Phag projecting healthy cells
- D. Invading healthy host tissues
Correct Answer: D
Rationale: Bone mets mean cancer's invaded malignant cells burrow into nearby tissues, breaking barriers to spread, a hallmark of metastasis. They don't just stick to the primary (adhesion's weak), mutate distant cells (that's not how it rolls), or eat healthy ones (phagocytosis is immune, not cancer). Invasion's the ticket cells chew through matrix, hit lymph or blood, and land in bones. Nurses in oncology spotlight this, tying it to why radiation's aimed at those hotspots, slowing the creep.
After change-of-shift report on the oncology unit, which patient should the nurse assess first?
- A. Patient who has a platelet count of 82,000/μL after chemotherapy
- B. Patient who has xerostomia after receiving head and neck radiation
- C. Patient who is neutropenic and has a temperature of 100.5°F (38.1°C)
- D. Patient who is worried about getting the prescribed long-acting opioid on time
Correct Answer: C
Rationale: Neutropenia plus fever 100.5°F screams infection risk, a sepsis threat needing instant assessment per ABCs in this chemo-ravaged unit. Platelets at 82,000 bleed less urgently; xerostomia's dry mouth annoys, not kills; opioid timing's comfort, not crisis. Nurses hit fever first, anticipating cultures or antibiotics, a life-saving triage in oncology's fragile lineup.