Nokea
A patient's medication order indicates that he is to receive a dose of cosyntropin. The nurse is aware that this drug is used to diagnose which condition?
- A. Adrenocortical insufficiency
- B. Diabetes insipidus
- C. Myasthenia gravis
- D. Pituitary dwarfism
Correct Answer: A
Rationale: Cosyntropin is a synthetic ACTH used to diagnose adrenocortical insufficiency by stimulating cortisol production. It is not used for diagnosing diabetes insipidus, myasthenia gravis, or pituitary dwarfism.
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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 a patient is receiving vasopressin, the nurse will monitor for which therapeutic response?
- A. Improved appetite
- B. Increased serum albumin levels
- C. Increased serum potassium levels
- D. Decreased urinary output
Correct Answer: D
Rationale: Vasopressin, an antidiuretic hormone, reduces urinary output by promoting water reabsorption in the kidneys, addressing polyuria in conditions like diabetes insipidus. It does not affect appetite, albumin, or potassium levels.
A patient is about to receive a dose of octreotide. The nurse will assess for which contraindications or cautions? (Select all that apply.)
- A. Carcinoid crisis
- B. Diarrhea
- C. Type 1 diabetes mellitus
- D. Gallbladder disease
- E. Chronic renal failure
- F. Esophageal varices
Correct Answer: C,D,E
Rationale: Octreotide requires caution in patients with type 1 or 2 diabetes, gallbladder disease, or chronic renal failure due to potential effects on glucose metabolism, gallbladder function, and renal clearance. Carcinoid crisis, diarrhea, and esophageal varices are indications for octreotide use.
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.
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.