HESI LPN
Adult Health 2 Exam 1
1. What is the homeostatic cellular transport mechanism that moves water from a hypotonic to a hypertonic fluid space?
- A. Filtration
- B. Diffusion
- C. Osmosis
- D. Active transport
Correct answer: C
Rationale: The correct answer is C: Osmosis. Osmosis is the homeostatic cellular transport mechanism that moves water from a hypotonic to a hypertonic fluid space to maintain cellular balance. In osmosis, water moves across a semi-permeable membrane from an area of low solute concentration (hypotonic) to an area of high solute concentration (hypertonic). This process helps regulate the water content inside cells. Choices A, B, and D are incorrect. Filtration involves the movement of solutes and solvents through a membrane due to a pressure difference, diffusion is the movement of solutes from an area of high concentration to low concentration, and active transport requires energy to move substances against their concentration gradient.
2. During a routine prenatal visit, a nurse measures a client’s fundal height at 26 weeks gestation. What should the fundal height be?
- A. Approximately 26 cm
- B. Between 24 to 28 cm
- C. Above the umbilicus by two finger widths
- D. Below the xiphoid process
Correct answer: B
Rationale: The correct answer is B: 'Between 24 to 28 cm.' Fundal height is expected to be approximately equal to the weeks of gestation, so at 26 weeks, the fundal height should typically range between 24 to 28 cm. Choice A is incorrect because fundal height is not an exact measurement of gestational age in centimeters. Choice C is incorrect as it provides a general description above the umbilicus, which is not specific to 26 weeks gestation. Choice D is incorrect as the fundal height would not reach below the xiphoid process at 26 weeks gestation.
3. The healthcare provider is preparing to administer an IM injection to an adult client. Which site is the preferred location for this injection?
- A. Deltoid muscle
- B. Vastus lateralis muscle
- C. Ventrogluteal muscle
- D. Dorsogluteal muscle
Correct answer: C
Rationale: The ventrogluteal site is the preferred site for IM injections in adults due to its muscle mass and low risk of nerve injury. The deltoid muscle, although commonly used for vaccines in adults due to easy accessibility, has a smaller muscle mass making it less ideal for IM injections. The vastus lateralis muscle is typically used in infants and young children, not in adults. The dorsogluteal site has a higher risk of injury to the sciatic nerve and is no longer recommended for IM injections in any age group.
4. A client with a diagnosis of depression is prescribed an SSRI. What is the most important information the nurse should provide?
- A. Take the medication as prescribed.
- B. Avoid consuming grapefruit juice.
- C. Report any thoughts of self-harm immediately.
- D. Understand that improvement may take weeks.
Correct answer: C
Rationale: The most important information the nurse should provide to a client prescribed an SSRI for depression is to report any thoughts of self-harm immediately. SSRIs can increase suicidal ideation, especially at the beginning of treatment, so it is crucial to monitor for this and take appropriate actions. While it is important to take the medication as prescribed (Choice A), the immediate need for reporting self-harm ideation takes precedence. Avoiding grapefruit juice (Choice B) is a general precaution with certain medications but not as critical in this scenario. Understanding that improvement may take weeks (Choice D) is important for managing treatment expectations, but ensuring the client's safety in the context of suicidal ideation is the top priority.
5. When preparing to administer blood to a client, what is the most important action to ensure client safety during this procedure?
- A. Check the client’s blood type compatibility
- B. Monitor the client for signs of transfusion reaction
- C. Verify the correct client and blood product with another healthcare professional
- D. All of the above
Correct answer: D
Rationale: The most important action to ensure client safety during a blood transfusion is to implement multiple safety checks. Checking the client’s blood type compatibility is crucial as it helps prevent major transfusion reactions. Monitoring the client for signs of transfusion reaction is essential to detect any adverse reactions early. Verifying the correct client and blood product with another healthcare professional adds an extra layer of safety by ensuring the right blood is administered to the right patient. Choosing 'All of the above' (Option D) is the correct answer because each action plays a vital role in ensuring the safety and well-being of the client during a blood transfusion. Options A, B, and C are not exclusive; they complement each other to provide comprehensive safety measures.
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