Nursing Elites

1. Why is the specific gravity for infants lower than for older children?

• A. Infants have a greater body surface area.
• B. Infants have a higher basal metabolic rate.
• C. Infants have a greater percentage of body weight that is water.
• D. Infants' kidneys are less able to concentrate urine.

Correct answer: D

Rationale: The correct answer is D because infants' kidneys are less developed compared to older children, making them less efficient at concentrating urine. This results in a lower specific gravity in infants. The other choices do not directly explain why the specific gravity is lower in infants.

2. A healthcare provider at an urgent care clinic is assessing an adolescent client who has an upper respiratory tract infection. Which of the following findings should the provider recognize as a manifestation of pertussis?

• A. Inflamed throat with exudate
• B. Purulent eye drainage
• C. Dry, hacking cough
• D. Koplik spots on buccal mucosa

Correct answer: C

Rationale: The correct answer is C: 'Dry, hacking cough.' A dry, hacking cough is a classic manifestation of pertussis. Pertussis typically presents with symptoms of an upper respiratory tract infection, starting with a persistent, severe, and uncontrollable cough that can worsen at night. This cough is often followed by a high-pitched 'whoop' sound as the patient tries to catch their breath, hence the term 'whooping cough.' In contrast, options A, B, and D are not typically associated with pertussis. Inflamed throat with exudate may suggest a bacterial throat infection like streptococcal pharyngitis, purulent eye drainage is more indicative of a bacterial conjunctivitis, and Koplik spots on the buccal mucosa are specific to measles. Therefore, recognizing the dry, hacking cough as a manifestation of pertussis is crucial for early identification and appropriate management of the disease.

3. The patient taking warfarin for prevention of deep vein thrombosis has an INR of 1.2. Which action by the nurse is most appropriate?

• A. Administer IV push protamine sulfate
• B. Continue with the current prescription.
• C. Prepare to administer Vitamin K
• D. Call healthcare provider to increase the dose

Correct answer: D

Rationale: An INR level of 1.2 is below the therapeutic range (2-3) for warfarin therapy. Therefore, the nurse should contact the healthcare provider to discuss the need for an increased dose to achieve the desired therapeutic range and prevent deep vein thrombosis effectively. Administering IV push protamine sulfate is used to reverse the effects of heparin, not warfarin. Continuing with the current prescription without addressing the subtherapeutic INR level may not effectively prevent deep vein thrombosis. Administering Vitamin K is indicated for warfarin overdose leading to excessive anticoagulation, not for a subtherapeutic INR level that is below the target range.

4. The nurse plans to closely monitor for which clinical manifestation after administering furosemide (Lasix)?

• A. Decrease pulse
• B. Decrease temperature
• C. Decrease BP
• D. Decrease respiratory rate.

Correct answer: C

Rationale: High-ceiling diuretics, such as furosemide, are the most effective diuretic agents. They produce more loss of fluid and electrolytes than any others. A sudden loss of fluid can result in decreased BP. When BP drops, the pulse will probably increase rather than decrease.

5. The nurse is reviewing the home medication list with the patient. The nurse recognizes that hydrochlorothiazide is used primarily for which condition?

• A. Hypertension
• B. Edema
• C. Diabetes insipidus
• D. Protection against postmenopausal osteoporosis

Correct answer: A

Rationale: Hydrochlorothiazide is primarily indicated for hypertension (HTN). Thiazides like hydrochlorothiazide are commonly the first-line treatment for hypertension. While hydrochlorothiazide can be used for edema, diabetes insipidus, and postmenopausal osteoporosis to some extent, its main use and efficacy lie in managing hypertension.

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