Nokea
Guaifenesin (Robitussin) 300 mg four times a day has been ordered as an expectorant. The dosage strength of the liquid is 200 mg/5 mL. How many milliliters should the nurse administer for each dose?
Correct Answer: 7.5 mL
Rationale: To calculate the dose: 300 mg ÷ 200 mg/5 mL = 1.5 × 5 mL = 7.5 mL per dose.
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The nurse is caring for a client in critical condition requiring several medications. The nurse understands which route of administration would be recommended for this client?
- A. Subcutaneous (subQ)
- B. Intravenous (IV)
- C. Intramuscular (IM)
- D. Oral (PO)
Correct Answer: B
Rationale: IV administration provides rapid and reliable delivery for a client in critical condition.
A female client diagnosed with lung cancer is to have a left lower lobectomy. Which of the following increase the client's risk of developing postoperative pulmonary complications?
- A. Height is 5 feet, 7 inches and weight is 110 lb.
- B. The client tends to keep her real feelings to herself.
- C. 8.88 stimulates and can climb one flight of stairs without dyspnea.
- D. The client is 58 years of age.
Correct Answer: A
Rationale: Low body weight (5'7€, 110 lb) indicates malnutrition, increasing the risk of postoperative pulmonary complications due to weakened respiratory muscles. Emotional suppression, good exercise tolerance, and age 58 are less directly related.
A nurse is assessing a client with heart failure. The nurse should assess the client based on which compensatory mechanisms that are activated in the presence of heart failure? Select all that apply.
- A. Sympathetic nervous system activation.
- B. Renin-angiotensin-aldosterone system activation.
- C. Myocardial hypertrophy.
- D. Natriuretic peptide release.
- E. Ventricular dilation.
Correct Answer: A,B,C,D,E
Rationale: Heart failure activates the sympathetic nervous system (A), renin-angiotensin-aldosterone system (B), myocardial hypertrophy (C), natriuretic peptide release (D), and ventricular dilation (E) to compensate for reduced cardiac output.
A client has undergone an amputation of several toes and a femoral-popliteal bypass. The nurse should teach the client that after surgery which of the following leg positions is contraindicated for her while sitting in a chair?
- A. Crossing the legs
- B. Elevating the legs
- C. Flexing the ankles
- D. Extending the knees
Correct Answer: A
Rationale: Crossing the legs is contraindicated post-femoral-popliteal bypass and toe amputation, as it compresses blood vessels, impairing circulation and increasing the risk of graft occlusion or ischemia. Elevating legs, flexing ankles, and extending knees are generally acceptable unless otherwise specified.
A client is admitted with a 6.5-cm thoracic aneurysm. The nurse records findings from the initial assessment in the client's chart, as shown below. At 10:30 a.m., the client complains of sharp midchest pain after having a bowel movement. What should the nurse do first?
- A. Assess the client's vital signs
- B. Administer a bolus of lactated Ringer's solution
- C. Assess the client's neurologic status
- D. Contact the physician
Correct Answer: A
Rationale: Sharp midchest pain in a client with a thoracic aneurysm suggests possible dissection or rupture, a life-threatening emergency. Assessing vital signs (e.g., hypotension, tachycardia) first provides critical data to guide action. Fluid bolus, neurologic assessment, or contacting the physician follow based on findings.