Nokea
A nurse in a provider's office is monitoring serum electrolytes for four older adult clients who take digoxin. Which of the following electrolyte values increases a client's risk for Digoxin toxicity?
- A. Calcium 9.2 mg/dL
- B. Calcium 10.3 mg/dL
- C. Potassium 3.4 mEq/L
- D. Potassium 4.8 mEq/
Correct Answer: C
Rationale: Hypokalemia (3.4 mEq/L, C) increases digoxin toxicity risk by enhancing its effects.
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A 27-year-old male is admitted to the Emergency Department (ED) after a serious motorcycle accident. The patient has a head injury, abrasions covering the left side of his body, a broken left femur, and internal injuries that are not fully assessed at this time. He is transferred from the ED to the ICU. The nurse who is going to care for this patient in the ICU knows that one of their most important responsibilities in regard to drug therapy is what?
- A. Support vital functions
- B. Continue curative treatment
- C. Institute life-saving treatment
- D. Monitor the patient's response
Correct Answer: D
Rationale: Monitoring drug response ensures timely adjustments in critical care, optimizing therapy amidst multiple injuries.
The following drugs are excreted in the bile except:
- A. Erythromycin
- B. Novobiocin
- C. Chloramphenicol
- D. Rifampicin
Correct Answer: C
Rationale: Chloramphenicol is primarily excreted via the kidneys, not bile.
A patient is ordered to receive a subcutaneous injection of heparin twice a day. When administering this drug to the patient, which of the following would be most important for the nurse to do to minimize tissue damage?
- A. Insert the needle at the appropriate angle.
- B. Select the needle length based on the patient's weight.
- C. Ensure that there is no hair on the injection site.
- D. Rotate the injection site regularly.
Correct Answer: D
Rationale: The nurse should rotate the injection sites to minimize the damage caused to the tissue. Inserting the needle at the proper angle and selecting the needle length based on the patient's weight will not significantly help in minimizing tissue damage if the same site is repeatedly injected. It is not necessary to avoid injection sites that have hair as long as the drug is administered in the upper arms, the upper abdomen, and the upper back.
Anti-inflammatory action of glucocorticoids is determined by:
- A. Inhibition of phospholipase A2
- B. Activation of phospholipase A2
- C. Inhibition of cyclooxygenase type-1
- D. Inhibition of cyclooxygenase type-2
Correct Answer: A
Rationale: Glucocorticoids inhibit phospholipase A2, reducing the production of inflammatory mediators like prostaglandins.
Insulin medications are not administered per os because
- A. Are poorly absorbed in GI truct
- B. They are breaksdown by the action of dygestive enzymes
- C. Increase glucose absorbtion
Correct Answer: B
Rationale: Insulin is a peptide broken down by digestive enzymes, rendering oral administration ineffective.