Nokea
Officially approved blood glucose meters used for self-testing and point-of-care diagnostics are not always suitable to measure the blood glucose values in neonates. Question: What is the main cause for this?
- A. Some meters are calibrated to plasma glucose and other meters to blood glucose
- B. Some measurement methods are sensitive to high levels of ascorbic acid (vitamin C)
- C. The measurement variation of some meters is too large
- D. Some meters are sensitive to abnormal haematocrit values
Correct Answer: D
Rationale: Neonate glucose flubs haematocrit swings throw meters off, not calibration, vitamin C, or variance. Nurses adjust for this, a chronic baby glitch.
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Heart failure with preserved ejection fraction is caused by:
- A. Ventricular hypertrophy reducing contractility of muscles
- B. Decreased perfusion of the myocardium
- C. Dilated cardiomyopathy
- D. Impaired ventricular relaxation resulting in the lack of ability of ventricles to fill with blood
Correct Answer: D
Rationale: HFpEF stiff ventricles won't relax, slashing fill-up, not pump-out. Hypertrophy aids, doesn't cause; perfusion dips hurt supply; dilated's HFrEF. Nurses target this, a chronic fill flaw.
Post exposure prophylaxis against Human Immunodeficiency Virus (HIV):
- A. is probably not effective when commenced 36 hours post exposure
- B. is administered intramuscularly
- C. is generally well-tolerated by patients
- D. when given, precludes the need for follow up serology
Correct Answer: C
Rationale: HIV PEP tolerable pills, not IM, works past 36 hours, needs serology, safe in pregnancy. Nurses dose this chronic shield easy.
The clinic nurse is caring for a 42-year-old male oncology patient. He complains of extreme fatigue and weakness after his first week of radiation therapy. Which response by the nurse would best reassure this patient?
- A. These symptoms usually result from radiation therapy; however, we will continue to monitor your laboratory and x-ray studies
- B. These symptoms are part of your disease and are an unfortunately inevitable part of living with cancer
- C. Try not to be concerned about these symptoms. Every patient feels this way after having radiation therapy
- D. Even though it is uncomfortable, this is a good sign. It means that only the cancer cells are dying
Correct Answer: A
Rationale: Radiation zaps energy fatigue and weakness are par for the course, tied to inflammation and repair in treated tissues. Saying this, plus promising lab and imaging checks, reassures him it's expected, not a red flag, and keeps him in the loop. Blaming cancer alone dodges the treatment link, unsettling him. Dismissing it as universal or a good sign' feels flippant normal cells die too. Nurses in oncology lean on honesty and vigilance, easing fears while tracking for worse issues like anemia or infection.
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.
Percutaneous cervical cordotomy:
- A. Is performed under general anaesthesia.
- B. Occurs by entry of a needle into the intervertebral foramen between cervical vertebrae C4 and C5.
- C. Involves thermoablation of the anterior spinothalamic tract.
- D. Is performed on the same side as the pain.
Correct Answer: C
Rationale: Percutaneous cervical cordotomy (PCC) relieves cancer pain via targeted nerve destruction. It's done under local anesthesia with sedation, not general, to monitor patient response (e.g., pain relief, side effects) during stimulation. The needle enters at C1-C2, not C4-C5, targeting the lateral spinothalamic tract contralateral to the pain not the anterior tract explicitly, though terminology varies. Thermoablation destroys pain fibers, confirmed by test stimulation. It's performed opposite the pain side due to crossed spinothalamic pathways. Complete numbness isn't typical; sensory loss is partial. Thermoablation's specificity using radiofrequency to interrupt pain transmission defines PCC's efficacy, minimizing damage to adjacent motor tracts while achieving analgesia.