Which of the following hormones retains sodium in the body?
- A. Antidiuretic hormone
- B. Aldosterone
- C. Thyroid hormone
- D. Insulin
Correct Answer: B
Rationale: Aldosterone is a hormone produced by the adrenal glands that plays a crucial role in regulating the balance of sodium and potassium in the body. One of its primary functions is to retain sodium in the body, leading to increased reabsorption of sodium in the kidneys. This retention of sodium helps to maintain blood pressure and fluid balance. In contrast, other hormones like antidiuretic hormone (ADH) primarily regulate water reabsorption, while thyroid hormone and insulin do not have a direct role in retaining sodium in the body.
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In pediatric rhabdomyosarcoma, stages are dependent on primary site whether favorable or unfavorable. Which of the following sites of involvement is considered unfavorable?
- A. vagina
- B. uterus
- C. testis
- D. paranasal sinuses
Correct Answer: D
Rationale: Paranasal sinuses are considered unfavorable sites in rhabdomyosarcoma staging.
Which of the ff. type of eyedrops does the nurse understand is given to constrict the pupil, permitting aqueous humor to flow around the lens?
- A. Osmotic
- B. Mydriatic
- C. Myotic
- D. Cycloplegic
Correct Answer: B
Rationale: Mydriatic eye drops are used to dilate or enlarge the pupil. By dilating the pupil, these eye drops allow more light to enter the eye and are often used before eye exams. This dilation also permits aqueous humor to flow around the lens. In contrast, myotic eye drops are used to constrict the pupil, which can increase pressure in the eye. Osmotic eye drops are used to reduce intraocular pressure by drawing fluid out of the eye. Cycloplegic eye drops are used to temporarily paralyze the muscles in the eye, affecting accommodation and pupil size.
The MOST appropriate answer to why infants cry in response to another infant's cry is
- A. an early sign of empathy development
- B. a sign of good hearing reflex
- C. a startle reflex
- D. an early sign of fear development
Correct Answer: A
Rationale: Empathy begins developing early, though rudimentary.
A patient who is suspected of having hypothyroidism should be expected which of these symptoms?
- A. tachycardia
- B. hyperthermia
- C. weight loss
- D. extreme fatigue
Correct Answer: D
Rationale: Hypothyroidism is a condition where the thyroid gland does not produce enough thyroid hormone, leading to a slowing down of the body's metabolic processes. One of the hallmark symptoms of hypothyroidism is extreme fatigue or tiredness. This can be due to the overall decrease in metabolic rate affecting energy levels and causing a feeling of exhaustion. Other common symptoms of hypothyroidism include weight gain, cold intolerance, constipation, dry skin, and depression. Tachycardia (fast heart rate), hyperthermia (elevated body temperature), and weight loss are not typically associated with hypothyroidism, but rather with conditions such as hyperthyroidism where there is an excess of thyroid hormone production.
A client asks nurse Carlos the rationale for giving multi-drug treatment for tuberculosis. Which is an appropriate response?
- A. multiple drugs allow reduced levels of drugs to be given
- B. multiple drugs reduce undesirable drug side-effect
- C. multiple drugs potentiate the action fo the drugs
- D. multiple drugs reduce development of resistant strains of the bacteria
Correct Answer: D
Rationale: Giving multiple drugs for the treatment of tuberculosis is essential because it helps reduce the development of resistant strains of the bacteria. Tuberculosis is caused by Mycobacterium tuberculosis, which has the potential to develop resistance to single drug therapy through genetic mutations. The use of multiple drugs in combination therapy prevents the bacteria from developing resistance since they work through different mechanisms of action, making it harder for the bacteria to adapt and survive. This approach is known as Directly Observed Treatment, Short-course (DOTS), and it is an effective strategy recommended by the World Health Organization to combat the rising issue of drug-resistant tuberculosis.