RUHS, Jaipur, PB B.Sc Nursing Entrance-2022
Medical & Surgical Nursing
Easy
Which of the following is not a contributory factor of hypomagnesemia?
Appeared in: RUHS, Jaipur, PB B.Sc Nursing Entrance-2022
Explanation
- Hypothyroidism is a cause of hypermagnesemia (elevated magnesium levels), not hypomagnesemia.
- The mechanism involves decreased renal excretion of magnesium, leading to its accumulation in the body.
- Therefore, hypothyroidism is the correct answer as it is not a contributory factor for low magnesium levels.
Why Other Options Were Wrong
- Option A: Chronic alcoholism is a primary cause of hypomagnesemia.
- Option C: Prolonged use of laxatives is a direct cause of hypomagnesemia.
- Option D: Malabsorptive disorders are a well-known cause of hypomagnesemia.
Related Visual
Clinical Relevance
- Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Etiology of Hypomagnesemia as background academic context rather than a clinical decision trigger.
- Nurses must monitor for signs of hypomagnesemia (e.g., neuromuscular irritability, tremors, positive Chvostek's and Trousseau's signs, cardiac arrhythmias) in at-risk patients, such as those with chronic alcoholism or malabsorption syndromes.
- Patient education is crucial for individuals with chronic conditions. For instance, a patient with kidney disease should be taught to avoid magnesium-containing over-the-counter medications like certain antacids and laxatives to prevent hypermagnesemia.
- What if the patient had chronic kidney disease instead of hypothyroidism? The patient would still be at high risk for hypermagnesemia, as impaired kidneys cannot effectively excrete magnesium, making this a more common and severe cause than hypothyroidism.
How to Approach the Question
- First, identify the core concept of the question, which is the causes of 'hypomagnesemia' (low magnesium).
- Note the negative keyword 'not'. This means you are looking for the option that does NOT cause hypomagnesemia.
- Evaluate each option: Does chronic alcoholism cause low magnesium? Yes. Does laxative abuse cause low magnesium? Yes. Does malabsorption cause low magnesium? Yes.
- Evaluate the remaining option: Does hypothyroidism cause low magnesium? No, the literature confirms it is associated with high magnesium (hypermagnesemia).
- Therefore, the option that is not a contributory factor is the correct answer.
Concept Tested & Keywords
- Concept Tested: Etiology of Hypomagnesemia
- Stem keywords: hypomagnesemia, contributory factor
- Lead-in keywords: not
- Negative lead-in flag: The question asks to identify the option that is NOT a cause of hypomagnesemia.
Question ID
Q9Vdm0hzGkecTEr7TdIWka
Reference Book
E6 Nursing Brunner Adult Health 3SA Vol 1 Part 1 p. 157-159
E6 Medicine Harrison 22e Part 2 p. 1171-1173
E6 Medicine Davidson Principles Practice 24e p. 388-390
Practise the full RUHS, Jaipur, PB B.Sc Nursing Entrance-2022
Attempt every question from this paper in a timed mock, then review the full solution for each one.
More Fluid and Electrolytes: Balance and Distribution Questions
- All are crystalloid solution; except:
- ECG of the patient is showing ST depression, Prominent U wave and inverted T wave. Which of the electrolyte imbalance present?
- A patient reports calcium loss. What is the nursing intervention?
- The principle of hemodialysis in which the water is moving under high pressure to an area of lower pressure is:
- Measurement of arterial blood gas shows pH: 7.2, PaCO2 : 70 mm Hg, HCO3: 27 mmol/L and PaO2: 59 mm Hg. Interpret this:
- Fluid volume deficit or hypovolemia describes the loss of
- A patient presents to the emergency department with a serum pH of 7.25, pCO2 of 40 mmHg, HCO3 of 22 mEq/L, sodium of 150 mEq/L, and chloride of 100 m…
- A 65-year-old patient is admitted to the hospital with a serum sodium level of 132 mmol/L. Despite being asymptomatic at admission, the patient begin…
- You are assessing a patient who is experiencing hyperventilation, resulting in a below-normal carbon dioxide (CO2) level. The patient is exhibiting s…
- A patient undergoes nasogastric suctioning for several days. Which electrolyte imbalance is most likely to occur due to this treatment?
More RUHS, Jaipur, PB B.Sc Nursing Entrance-2022 Questions
- Foetoscope is used to -
- Fundal height at the 24th week of pregnancy is ?
- Normal fetal heart rate at 38 weeks of gestational period is ?
- Fetal movement that is felt by the mother from 18th week of gestation is called ?
- Which type of pelvis has rounded brim?
- Which of the following is not an indication of caesarean section?
- At the 10cm dilatation of cervix during labor, fetal heart rate should be assessed at least-
- A mother in labor has been pushing effectively for 1 hour. The primary physiological need of mother in between contractions is ?
- Softening and blue purple discoloration of cervix in early pregnancy is called-
- Which of the following nursing intervention is most appropriate initially if uterus feels soft and boggy in the immediate post-partum period?