NCLEX PN Exam Cram - Nurselytic

Correct Answer: B

Rationale: Beta cells are responsible for secreting insulin. Insulin is produced by beta cells in the pancreas and plays a crucial role in regulating blood sugar levels. Alpha cells secrete glucagon, not insulin (
Choice
A). CD4 cells are a type of immune cell that helps coordinate the immune response (
Choice
C). Helper cells are a type of immune cell that aids in activating other immune cells (
Choice
D).
Therefore, the correct answer is beta cells.

Correct Answer: A

Rationale: The correct answer is to mix the liquid iron preparation with antacids to reduce GI distress. This statement is incorrect because iron should not be mixed with antacids as it can significantly reduce the absorption of iron.
Choice B is a good recommendation as taking iron with meals can help reduce gastrointestinal distress.
Choice C is also correct as liquid forms of iron should be taken with a straw to prevent the discoloration of tooth enamel.
Choice D is incorrect as iron preparations can be taken with juice or water, but not with milk, as calcium in milk can inhibit iron absorption.

Correct Answer: C

Rationale: Morphine is a narcotic analgesic that acts centrally to relieve pain by binding to opioid receptors in the CNS, leading to the depressed function of the CNS. Morphine also causes peripheral vasodilation, which can lead to increased blood flow. However, morphine causes venous dilation and increased venous capacity rather than decreased venous capacity.
Therefore, the effect of 'Decreased venous capacity' is unrelated to Morphine's effects. Pain relief is a well-known effect of Morphine, as it acts on the CNS to alter the perception of pain.

Correct Answer: C

Rationale: The correct answer is 6 years old. At this age, children typically have the potential for 20/20 vision. This is considered the standard age for achieving optimal vision clarity.

Choices A, B, and D are incorrect as they are not typically associated with the age at which children achieve 20/20 vision.

Correct Answer: A

Rationale: In thyroid storm, there is an excess of thyroxine, leading to symptoms such as tachycardia (rapid heart rate) and hyperthermia (increased body temperature). Atrial fibrillation and palpitations are also commonly observed.

Choices B and C are more indicative of hypothyroidism, where the thyroid is underactive, leading to bradycardia (slow heart rate), hypothermia (decreased body temperature), and the development of a large goiter.
Choice D, a calm, quiet client, is unlikely in a thyroid storm where the individual would typically present with symptoms of agitation and restlessness due to the hypermetabolic state.