Specific gravity in urinalysis:

Correct Answer: A

Rationale: Specific gravity in urinalysis measures the concentration of solutes in urine compared to that of distilled water. This comparison helps in assessing the kidney's ability to concentrate urine properly. It is a valuable test even in dehydrated patients as it provides insights into renal function. Specific gravity can be measured using various methods, including a refractometer or reagent strips. Normal specific gravity readings of human urine typically range from 1.005 to 1.030. Choice A is correct as it accurately describes the purpose of specific gravity in urinalysis. Choices B and C are incorrect as specific gravity remains relevant in dehydrated patients and can be measured using different techniques, not solely a refractometer.

Correct Answer: B

Rationale: To prevent the spread of infection from a chronic carrier, the nurse should focus on blocking the portal of exit from the reservoir, which is the carrier person. By preventing the movement of the organism from the reservoir, the infection can be contained. Eliminating the reservoir is not feasible in this case as the carrier is a chronic carrier. Blocking the portal of entry into the host or decreasing the susceptibility of the host would only impact individual prevention and not the spread from the carrier to others.

Correct Answer: C

Rationale: The erythrocyte sedimentation rate (ESR) is a non-specific screening test for inflammation in the body. It is not used as a definitive diagnostic tool for specific conditions. When ESR results are abnormal, they indicate the presence of inflammation, which can be caused by various reasons. Therefore, abnormal results should be followed by additional testing to determine the underlying cause. The ESR test measures the rate at which red blood cells settle in a vertical tube over the span of one hour, and results are reported in millimeters per hour. Choice A is incorrect because ESR results are not solely diagnostic for any specific condition. Choice B is incorrect as abnormal ESR results do not directly indicate a potentially fatal illness without further investigation. Choice D is incorrect as the results are reported in millimeters per hour, not per minute.

Correct Answer: D

Rationale: The correct answer is 'Long-term goals.' Long-term goals are designed to describe changes in client behavior expected over a time frame greater than one week. In this case, the goal of reestablishing a pattern of daily bowel movements without straining within two months falls under a long-term goal. Long-term goals are aimed at restoring normal functioning in a problem area and are beneficial for healthcare workers caring for the client across different settings. Choices A, B, and C are incorrect because nursing diagnosis/problem list, nursing orders, and short-term goals do not encompass the desired timeframe or level of expected change in this scenario.

Correct Answer: A

Rationale: When considering the use of side rails for a confused patient, it is crucial for the nurse to understand that individuals of small stature are at a higher risk for injury from entrapment. Studies have shown that people of small stature are more likely to slip through or between the side rails, making them vulnerable to harm. It is essential to prioritize patient safety and avoid potential risks associated with entrapment. Conversely, a history of previous falls from a bed with raised side rails is significant as it indicates a heightened risk for future serious incidents. The desire to prevent a patient from wandering alone does not justify the use of side rails; instead, alternative measures should be creatively employed to respect the patient's dignity and avoid more serious fall-related injuries.

Correct Answer: D

Rationale: The patient with chronic pancreatitis is the best choice to admit to the same room as a patient who had a liver transplant and is experiencing acute rejection. This is because the patient with chronic pancreatitis does not pose an infection risk to the immunosuppressed patient who had a liver transplant. On the other hand, patients receiving chemotherapy for cancer or those with wound infections are at risk for infections, which could endanger the immunosuppressed patient with acute rejection.

Correct Answer: D

Rationale: The correct answer is 'One green, one red.' An H&H test involves hemoglobin and hematocrit, which are components of a complete blood count and are typically drawn in a lavender tube. On the other hand, blood for glucose testing is collected in grey tubes. Therefore, when drawing blood for both an H&H and glucose test, one green tube for glucose and one red tube for H&H should be used. The other choices are incorrect because light blue tubes are used for coagulation studies, lavender tubes are for complete blood counts, and green tubes are for chemistry tests like glucose, while grey tubes are specifically for glucose testing.

Correct Answer: C

Rationale: When examining a 6-year-old child, it is important to consider their sense of modesty. The child should undress themselves, leaving underpants on and using a gown or drape to maintain privacy. Additionally, a school-age child like a 6-year-old is curious about how equipment works, so it is beneficial to explain the purpose and function of the tools being used. The examination sequence should typically progress from the child's head to the toes to ensure a thorough assessment. Therefore, choices A, B, and D are incorrect as they do not align with the appropriate approach to examining a 6-year-old child.

Correct Answer: A

Rationale: Asking about the weather initiates the social or introductory phase of the interview, allowing the nurse to establish rapport with the client at the beginning. This question can help assess the client's mental status and set a friendly tone. In the body phase, the client responds to the nurse's inquiries, while during the closing phase, either the nurse or the client concludes the interview. Therefore, the best time to ask about the weather forecast is during the introduction phase to facilitate a positive start to the interaction.