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Hypoglycemia can result from the action of either insulin or an oral hypoglycemic. Signs and symptoms of hypoglycemia include:
- A. Fruity' breath odor and rapid respiration
- B. Diarrhea, abdominal pain, weight loss, and hypertension
- C. Dizziness, confusion, diaphoresis, and tachycardia
- D. Easy bruising, palpitations, cardiac dysrhythmias, and coma
Correct Answer: C
Rationale: Hypoglycemia presents with neuroglycopenic (dizziness, confusion) and adrenergic (diaphoresis, tachycardia) symptoms.
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Theophylline levels in blood are increased by:
- A. Erythromycin
- B. Ciprofloxacin
- C. Smoking
- D. Digitalis
Correct Answer: A
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When documenting, which of the following would be appropriate for the nurse to use at accredited health care organizations? Select one that does not apply.
- A. IU
- B. 2mg
- C. 0.2 mg
- D. Units
Correct Answer: A
Rationale: Always use a leading zero when writing decimals (i.e., 0.2 mg, not .2 mg) and leave off the trailing zero (i.e., 2 mg, not 2.0 mg). Always write out units, international units, and daily; do not use U, IU, or QD.
Reduce the likelihood of therapeutic failure with tamoxifen treatment
- A. Not provided in document
- B. Not provided in document
- C. Not provided in document
- D. Not provided in document
Correct Answer: B
Rationale: This question lacks options, but the answer key (ANS: 2) suggests the second choice. Strategies to reduce therapeutic failure include avoiding CYP2D6 inhibitors to ensure proper metabolism of tamoxifen to its active form.
Beta blockers are the drugs of choice for exertional angina because they:
- A. Improve myocardial oxygen supply by vasodilating the coronary arteries
- B. Decrease myocardial oxygen demand by decreasing heart rate and vascular resistance
- C. Both 1 and 2
- D. Neither 1 nor 2
Correct Answer: B
Rationale: Beta blockers reduce oxygen demand by lowering heart rate and resistance, not by vasodilation.
The safest drug to use to treat pregnant women with deep vein thrombosis is:
- A. Low-molecular-weight heparin
- B. Warfarin
- C. Aspirin
- D. Heparin
Correct Answer: D
Rationale: Heparin is safest in pregnancy as it doesn't cross the placenta, unlike warfarin (B, teratogenic); LMWH is also safe but not listed as 'heparin.'