Nursing Elites

1. The practical nurse is preparing to administer a prescription for cefazolin (Kefzol) 600 mg IM every six hours. The available vial is labeled, 'Cefazolin (Kefzol) 1 gram,' and the instructions for reconstitution state, 'For IM use add 2 ml sterile water for injection. Total volume after reconstitution = 2.5 ml.' When reconstituted, how many milligrams are in each milliliter of solution?

• A. 400 mg/mL
• B. 500 mg/mL
• C. 450 mg/mL
• D. 350 mg/mL

Correct answer: A

Rationale: After reconstitution, the concentration of cefazolin solution is calculated by dividing the total amount of drug (600 mg) by the total volume after reconstitution (2.5 mL). This gives 600 mg / 2.5 mL = 240 mg/mL. However, the question asks for the concentration in each milliliter of solution after reconstitution, so we need to consider the final volume of 2.5 mL. Therefore, 240 mg/mL * 2.5 mL = 600 mg, which means each milliliter contains 240 mg of cefazolin. Therefore, after reconstitution, there are 400 mg of cefazolin in each milliliter of solution. Choices B, C, and D are incorrect as they do not accurately reflect the concentration after reconstitution.

2. A client with chronic kidney disease is receiving hemodialysis. Which assessment finding should the nurse report to the healthcare provider immediately?

• A. Decreased urine output
• B. Weight loss of 1 kg
• C. Blood pressure of 150/90 mm Hg
• D. Presence of a bruit over the fistula

Correct answer: C

Rationale: The correct answer is C. An elevated blood pressure in clients with chronic kidney disease undergoing hemodialysis can indicate fluid overload or poor dialysis efficacy and should be reported immediately. This finding could lead to complications such as heart failure or pulmonary edema. Choices A, B, and D are not as critical in this situation. Decreased urine output may be expected due to the kidney disease, a weight loss of 1 kg is within an acceptable range, and the presence of a bruit over the fistula is a common finding in clients undergoing hemodialysis and does not require immediate reporting.

3. Which of the following are key parameters that produce blood pressure? (Select ONE that does not apply)

• A. Heart rate
• B. Stroke volume
• C. Peripheral resistance
• D. Neuroendocrine hormones

Correct answer: D

Rationale: Heart rate, stroke volume, and peripheral resistance are indeed key parameters that directly influence blood pressure. Heart rate refers to the number of times the heart beats per minute, affecting how much blood is pumped. Stroke volume is the amount of blood pumped by the heart in one contraction. Peripheral resistance is the resistance of the arteries to blood flow, impacting the pressure needed to push blood through. Neuroendocrine hormones, while they can indirectly influence blood pressure regulation by affecting factors like blood volume and vascular tone, are not direct final parameters that produce blood pressure.

4. The nurse is teaching a client about the administration of a subcutaneous injection. Which site is most appropriate for this type of injection?

• A. Deltoid muscle
• B. Dorsogluteal muscle
• C. Ventrogluteal muscle
• D. Abdomen

Correct answer: D

Rationale: The abdomen is a common site for subcutaneous injections due to its accessibility and ample subcutaneous tissue. Subcutaneous injections are typically given in areas with a layer of fat between the skin and muscle, such as the abdomen, to allow for slow and consistent absorption of the medication. The deltoid muscle is more appropriate for intramuscular injections, not subcutaneous. The dorsogluteal muscle and ventrogluteal muscle are also more suited for intramuscular injections, not subcutaneous.

5. How should the nurse assess for cyanosis in a client with dark skin who is in respiratory distress?

• A. Abnormal skin color changes in a client with dark skin cannot be determined
• B. Blanching the soles of the feet in a client with dark skin reveals cyanosis
• C. The lips and mucus membranes of a client with dark skin are dusky in color
• D. Cyanosis in a client with dark skin is seen in the sclera

Correct answer: C

Rationale: Observing the lips and mucous membranes provides a reliable indicator of cyanosis in clients with dark skin tones. Choice A is incorrect because cyanosis can be assessed in clients with dark skin by observing other body areas. Choice B is incorrect as blanching the soles of the feet is not a relevant method for assessing cyanosis. Choice D is incorrect as cyanosis is not typically seen in the sclera in clients with dark skin.

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