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The nurse is assessing a client with severe anemia. Which clinical manifestation does the nurse expect to see in this client?
- A. Bradycardia
- B. Pale, cool skin
- C. Hypertension
- D. Warm, flushed skin
Correct Answer: B
Rationale: Severe anemia starves oxygen pale, cool skin reflects shunted flow and low hemoglobin, a classic find as body compensates. Bradycardia's rare; tachycardia revs to pump more. Hypertension doesn't fit BP may drop. Warm, flushed skin suits overload, not anemia. Nurses expect pallor, tying it to blood's oxygen flop, a sign guiding transfusion or iron.
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A 75-year-old lady is listed for an anterior resection to treat a cancer in the descending hemicolon. She has never previously been in hospital. She gives no history of shortness of breath or angina, but admits that she does not take part in strenuous activity. Apart from painkillers, she takes no medications. Appropriate statements regarding preoperative testing include:
- A. Resting echocardiography is a useful test of her functional capacity.
- B. Coronary angiography is indicated.
- C. Cardiopulmonary exercise testing is a useful test of functional capacity.
- D. Brain natriuretic peptide level is a useful test that indicates heart failure.
Correct Answer: C
Rationale: Preoperative assessment evaluates surgical risk. Resting echocardiography assesses cardiac structure, not functional capacity, which requires dynamic testing. Coronary angiography is invasive and unwarranted without symptoms like angina or ischemia evidence. Cardiopulmonary exercise testing (CPET) measures aerobic capacity (e.g., VOâ‚‚ peak), directly assessing functional reserve for surgical stress ideal for this asymptomatic but inactive patient. Brain natriuretic peptide (BNP) indicates heart failure if elevated but doesn't test capacity; it's a biomarker, not a stress test. Dobutamine stress echocardiography detects ischemia, useful but less comprehensive than CPET for overall fitness. CPET's ability to quantify cardiopulmonary reserve makes it the most appropriate choice for optimizing perioperative management in this elderly patient.
Which of the following statements regarding weight regulation is TRUE?
- A. Weight regain after weight loss is physiological and not necessarily due to a failure of conscious efforts (to lose weight)
- B. The reward system of weight regulation is homeostatic in nature
- C. Liking' and wanting' of food are mainly conscious processes
- D. In human studies, functional MRI (fMRI) studies have shown deficiency in reward-encoding brain regions and/or over activation in cortical inhibitory networks in obese people
Correct Answer: A
Rationale: Weight bounces back biology, not just willpower; rewards aren't homeostatic, liking's subconscious, fMRI flips, hypothalamus rules. Nurses get this chronic rebound truth.
There are several different transmembranous glucose transporters (Gluts). Question: Which Gluts occur most frequently in the liver and which in the pancreas?
- A. Glut 1 in the liver and Glut 2 in the pancreas
- B. Glut 2 in the liver and Glut 2 in the pancreas
- C. Glut 2 in the liver and Glut 1 in the pancreas
- D. Glut 4 in the liver and Glut 2 in the pancreas
Correct Answer: B
Rationale: Liver slurps glucose with Glut 2, pancreas senses it the same both lean on this transporter's flow. Glut 1's elsewhere, Glut 4's muscle-fat turf nurses know this, a chronic glucose gate map.
Which does not cause genital ulceration?
- A. syphilis
- B. herpes simplex infection
- C. HIV
- D. lymphogranuloma venereum
Correct Answer: C
Rationale: HIV no direct ulcers; syphilis, herpes, LGV, chancroid carve sores. Nurses rule this chronic outlier.
According to the McGinnis model of 2002, what percentage of health differences between people is related to their behaviour?
- A. 10%
- B. 20%
- C. 30%
- D. 40%
Correct Answer: D
Rationale: McGinnis pegs behaviour smoking, eating at 40% of health gaps, big over genes or care. Nurses lean on this, a chronic choice chunk.