A person is 178 cm high and weighs 89 kg. What is his BMI?
- A. 26
- B. 28
- C. 31
- D. 34
Correct Answer: B
Rationale: BMI's weight over height squared 89 kg ÷ (1.78 m × 1.78 m) ≈ 28. Height in meters, simple math, lands between 25 and 30, overweight, not obese. Nurses crunch this daily, a chronic weight watch pegging 28 spot-on.
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Which of the following is the surgical treatment of choice for end-stage heart failure?
- A. Cardiac resynchronization therapy (CRT)
- B. Percutaneous angiogram
- C. Genetic counseling
- D. Ventricular assist devices (VADs)
Correct Answer: D
Rationale: End-stage heart failure, when drugs and pacing fail, leans on ventricular assist devices mechanical pumps aiding circulation, a bridge to transplant or destination therapy. CRT syncs ventricles, less invasive, but VADs tackle severe pump collapse. Angiograms diagnose, not treat; genetic counseling's irrelevant. Nurses prep for VADs, managing post-op risks, the go-to surgical fix in this terminal cardiac scenario.
A 50-year-old patient, body weight 98 kg and height 1.82 m, has been diagnosed with type 2 diabetes based on increased fasting blood glucose levels (8.2 and 7.9 mmol/L). This gave the patient such a shock that he started a strict calorie-restricted diet. Two weeks later, his fasting blood glucose is 6.8 mmol/L and he has lost 1 kg. Question: What is the most likely explanation for the sharp reduction of the blood glucose level and the limited reduction in weight of only ±1%?
- A. The insulin-stimulated glucose uptake in muscle tissue has increased
- B. The insulin-stimulated inhibition of hepatic glucose production has increased
- C. The insulin-stimulated uptake of free fatty acids in muscle tissue has increased
- D. The insulin-stimulated inhibition of glycerol production in the liver has increased
Correct Answer: B
Rationale: Type 2's glucose drop calorie cut reins in liver's sugar spill, insulin works better there. Muscle uptake helps, fat shifts less, glycerol's minor liver's the quick fix, weight lags nurses see this, a chronic tweak.
12 lead Electrocardiography (ECG) is a diagnostic tool used to assess the cardiovascular system. Which of the following are not diagnosed by ECG?
- A. Arrhythmias
- B. Conduction abnormalities
- C. Fluid overload
- D. Enlargement of heart chambers
Correct Answer: C
Rationale: ECG maps heart's electric arrhythmias, blocks, chamber bulges show up. Fluid overload? Physical, echo territory ECG hints, doesn't nail it. Nurses pair tools, a chronic heart's partial scope.
The nurse obtains information about a hospitalized patient who is receiving chemotherapy for colorectal cancer. Which information about the patient alerts the nurse to discuss a possible change in therapy with the health care provider?
- A. Poor oral intake
- B. Frequent loose stools
- C. Complaints of nausea and vomiting
- D. Increase in carcinoembryonic antigen (CEA)
Correct Answer: D
Rationale: Colorectal cancer's chemo tracks via CEA rising levels signal progression or resistance, a red flag for therapy tweak, needing provider input. Poor intake, diarrhea, and nausea are side effects, manageable with nursing care diet, fluids, antiemetics unless extreme. CEA's uptick, a tumor marker, trumps symptoms, hinting at disease outpacing treatment. Nurses flag this, pushing for scans or regimen shifts, a critical catch in this cancer's chemo dance.
Choose the CORRECT statement Babies born from mothers with gestational diabetes:
- A. Are at a high risk of being born with diabetes
- B. Are usually hypoglycaemic due to maternal insulin drug therapy
- C. Are usually of higher birth weight
- D. Are always given a glucose challenge test
Correct Answer: C
Rationale: Gestational diabetes fattens babies high maternal sugar pumps fetal growth, a hefty birth norm. They don't inherit diabetes at birth, hypo's rare unless mom's on insulin, tests aren't routine. Nurses track this, a chronic womb echo.