Nokea
An 8-year-old child has been diagnosed with true pituitary dwarfism and is being treated with somatropin. In follow-up visits, the nurse will monitor for which expected outcome?
- A. Increased growth
- B. Decreased urinary output
- C. Increased muscle strength
- D. Increased height when the child reaches puberty
Correct Answer: A
Rationale: Somatropin, a growth hormone, is used to treat pituitary dwarfism by promoting increased growth in children. Decreased urinary output and muscle strength are not primary outcomes, and height increase is expected during treatment, not just at puberty.
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The nurse notes in a patient's medication history that the patient has been taking desmopressin. Based on this finding, the nurse interprets that the patient has which disorder?
- A. Diabetes mellitus
- B. Diabetes insipidus
- C. Adrenocortical insufficiency
- D. Carcinoid tumor
Correct Answer: B
Rationale: Desmopressin, a synthetic antidiuretic hormone, is used to treat diabetes insipidus by reducing excessive thirst and urination caused by deficient endogenous antidiuretic hormone. It is not indicated for diabetes mellitus, adrenocortical insufficiency, or carcinoid tumors.
A patient is to receive vasopressin 5 units SUBQ twice a day. The medication is available in a vial that contains 20 units/mL. Identify how many milliliters the nurse will draw up for this dose. (record answer using two decimal places)
Correct Answer: 0.25 mL
Rationale: To calculate: 20 units/1 mL = 5 units/x mL. Cross-multiply: (20 * x) = (1 * 5); 20x = 5; x = 5/20 = 0.25 mL.
Which of these hormones are secreted by the anterior pituitary gland? (Select all that apply.)
- A. Antidiuretic hormone
- B. Thyroid-stimulating hormone
- C. Oxytocin
- D. Growth hormone
- E. Adrenocorticotropic hormone
Correct Answer: B,D,E
Rationale: The anterior pituitary secretes thyroid-stimulating hormone, growth hormone, and adrenocorticotropic hormone. Antidiuretic hormone and oxytocin are secreted by the posterior pituitary gland.
When reviewing the medication profile of a patient with a new order for desmopressin, the nurse notes that a drug interaction will occur if which drug is taken with desmopressin?
- A. Aspirin
- B. Digoxin
- C. Lithium
- D. Penicillin
Correct Answer: C
Rationale: Lithium can reduce the therapeutic effect of desmopressin by interfering with its antidiuretic action, potentially worsening polyuria in diabetes insipidus. Aspirin, digoxin, and penicillin do not have significant interactions with desmopressin.
A 16-year-old boy who is taking somatropin comes into the office because he had an asthma attack during a race at school. Because of this new development, the nurse expects which intervention to occur next?
- A. He will need to stop participating in school physical education classes.
- B. The somatropin must be discontinued immediately.
- C. The somatropin dosage may be adjusted.
- D. His growth will be documented and monitored for changes.
Correct Answer: C
Rationale: Somatropin should be used cautiously in patients with acute or chronic illnesses like asthma, often requiring dosage adjustments to balance risks and benefits. Immediate discontinuation is not necessary, and growth monitoring is routine but not the primary intervention.