Nokea
Lactogenic hormone:
- A. is also called oxytocin.
- B. is a gonadotropin.
- C. stimulates the mammary glands to produce milk.
- D. exerts its greatest effect on the gonads.
Correct Answer: C
Rationale: Rationale:
1. Lactogenic hormone stimulates mammary glands to produce milk, essential for lactation.
2. Oxytocin is a different hormone that causes milk ejection, not production.
3. Gonadotropins like FSH and LH affect gonads, not lactation.
4. Choice C directly relates to lactation, making it the correct answer.
You may also like to solve these questions
The antagonistic hormone to calcitonin is _____.
- A. thyroxine.
- B. growth hormone.
- C. insulin.
- D. parathyroid hormone.
Correct Answer: D
Rationale: The correct answer is D: parathyroid hormone. Calcitonin and parathyroid hormone regulate calcium levels in the blood. Calcitonin lowers blood calcium levels by inhibiting bone resorption, while parathyroid hormone increases blood calcium levels by promoting bone resorption. Thus, they have opposite effects on calcium regulation, making parathyroid hormone the antagonistic hormone to calcitonin. Thyroxine (A), growth hormone (B), and insulin (C) do not directly oppose the action of calcitonin in regulating calcium levels.
In type 1 diabetes there is an osmotic effect of glucose when insulin deficiency prevents the use of glucose for energy. Which classic symptom is caused by the osmotic effect of glucose?
- A. Fatigue
- B. Polyphagia
- C. Polydipsia
- D. Recurrent infections
Correct Answer: C
Rationale: Polydipsia is caused by the osmotic effect of glucose, leading to excessive urination and increased thirst.
A deficiency of ADH most likely:
- A. elevates blood glucose levels.
- B. causes diabetes mellitus.
- C. induces polyuria.
- D. expands blood volume.
Correct Answer: C
Rationale: Step-by-step rationale:
1. ADH (antidiuretic hormone) regulates water balance by increasing water reabsorption in the kidneys.
2. A deficiency of ADH leads to decreased water reabsorption, resulting in increased urine output (polyuria).
3. Polyuria causes dehydration, electrolyte imbalances, and concentrated urine.
4. Elevated blood glucose levels (choice A) and diabetes mellitus (choice B) are not directly related to ADH deficiency.
5. Expanding blood volume (choice D) would not occur due to decreased water reabsorption.
Summary:
A deficiency of ADH most likely induces polyuria by decreasing water reabsorption in the kidneys. Elevated blood glucose levels, diabetes mellitus, and expanding blood volume are not direct consequences of ADH deficiency.
Individualized nutrition therapy for patients using conventional, fixed insulin regimens should include teaching the patient to
- A. eat regular meals at regular times.
- B. restrict calories to promote moderate weight loss.
- C. eliminate sucrose and other simple sugars from the diet.
- D. limit saturated fat intake to 30% of dietary calorie intake.
Correct Answer: A
Rationale: Patients with fixed insulin regimens should eat regular meals to match insulin action and prevent hypoglycemia.
A nurse assesses a client who is prescribed a medication that stimulates beta1 receptors. Which assessment finding would indicate that the medication is effective?
- A. Heart rate of 92 beats/min
- B. Respiratory rate of 18 breaths/min
- C. Oxygenation saturation of 92%
- D. Blood pressure of 144/69 mm Hg
Correct Answer: A
Rationale: The correct answer is A: Heart rate of 92 beats/min. Activation of beta1 receptors increases heart rate. Therefore, a heart rate of 92 beats/min indicates that the medication is effectively stimulating beta1 receptors. Choices B, C, and D are incorrect as they do not directly correlate with beta1 receptor stimulation. Choice B (Respiratory rate of 18 breaths/min) is influenced more by beta2 receptors. Choice C (Oxygenation saturation of 92%) is related to oxygen levels in the blood, not beta1 receptor stimulation. Choice D (Blood pressure of 144/69 mm Hg) is more affected by alpha receptor stimulation than beta1 receptor stimulation.