Nursing Elites

1. The PN is caring for a client with diabetes insipidus. The nurse can expect the lab work to show:

• A. elevated urine osmolarity and elevated serum osmolarity.
• B. decreased urine osmolarity and decreased serum osmolarity.
• C. elevated urine osmolarity and decreased serum osmolarity.
• D. decreased urine osmolarity and elevated serum osmolarity.

Correct answer: decreased urine osmolarity and elevated serum osmolarity.

Rationale: In diabetes insipidus, the pituitary releases too much antidiuretic hormone (ADH), causing the client to produce a large amount of dilute urine (decreased osmolarity) and leading to dehydration (elevated serum osmolarity). Therefore, the correct answer is decreased urine osmolarity and elevated serum osmolarity. Choice C, elevated urine osmolarity and decreased serum osmolarity, is incorrect for diabetes insipidus, as it is more characteristic of syndrome of inappropriate ADH (SIADH). Choices A and B, elevated urine osmolarity and elevated serum osmolarity, and decreased urine osmolarity and decreased serum osmolarity, respectively, are generally not seen in diabetes insipidus, as urine and serum osmolarity typically move in opposite directions in this condition.

2. What is the best lab test to diagnose disseminated intravascular coagulation (DIC)?

• A. platelet count
• B. prothrombin time (PT)
• C. partial thromboplastin time (PTT)
• D. D-dimer

Correct answer: D-dimer

Rationale: The best lab test to diagnose disseminated intravascular coagulation (DIC) is the D-dimer test. In DIC, numerous small clots form throughout the body and are rapidly broken down. D-dimer measures a specific fibrin split product and is the most specific test for DIC. Platelet count (Choice A) is decreased in DIC due to consumption, but it is not specific for diagnosing DIC. Prothrombin time (PT - Choice B) and partial thromboplastin time (PTT - Choice C) are both elevated in DIC because clotting factors have been used up, but they are not specific for DIC as they can be elevated in other conditions as well.

3. Nurses should understand the chain of infection because it refers to:

• A. the linkages involved in disease transmission.
• B. the sequence required for transmission of disease.
• C. the clustering of bacteria in a specific pattern.
• D. increasing virulence patterns among microorganisms.

Correct answer: the sequence required for transmission of disease.

Rationale: The chain of infection refers to the sequence required for the transmission of disease, involving steps like the pathogen's presence, movement from a reservoir, and entry into a susceptible host. Understanding this sequence helps healthcare professionals, including nurses, in implementing effective infection control measures. Choices A, C, and D are incorrect because they do not accurately describe the concept of the chain of infection. Choice A is too broad and does not specifically address the sequential nature of disease transmission. Choice C focuses on bacterial clustering rather than the transmission process. Choice D mentions virulence patterns, which are not the primary focus of the chain of infection concept.

4. A healthcare provider is screening patients for various vaccines. Which of the following vaccines is contraindicated during pregnancy?

• A. Diphtheria
• B. Hepatitis B
• C. Mumps
• D. Tetanus

Correct answer: C

Rationale: The correct answer is Mumps. The Mumps vaccine, along with the Rubella vaccine, is contraindicated during pregnancy due to the theoretical risk of affecting the developing fetus. Diphtheria, Hepatitis B, and Tetanus vaccines are considered safe during pregnancy and are often recommended to protect both the pregnant individual and the developing fetus. Therefore, choices A, B, and D are incorrect.

5. The client is wheezing and struggling to breathe. Which of the inhaled medications is indicated at this time?

• A. Fluticasone (Flovent)
• B. Salmeterol (Serevent)
• C. Theophylline (Theodur)
• D. Albuterol (Atrovent)

Correct answer: Albuterol (Atrovent)

Rationale: The correct answer is Albuterol (Atrovent) because it is a rapid-acting bronchodilator, essential for a client experiencing wheezing and difficulty breathing. Albuterol acts quickly, dilating the airways and providing immediate relief in cases of respiratory distress. Fluticasone (Flovent) and Salmeterol (Serevent) are maintenance medications for long-term asthma control, not suitable for acute situations described. Theophylline (Theodur) is a bronchodilator but with a slower onset compared to Albuterol, making it less appropriate for a client in immediate distress.

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