HESI A2
HESI A2 Math 2024
1. What is 35% of 70?
- A. 17.5
- B. 24.5
- C. 35
- D. 50
Correct answer: B
Rationale: To find 35% of a number, you multiply the number by 0.35. In this case, 35% of 70 is calculated as 70 x 0.35 = 24.5. Choice A (17.5) is incorrect because it represents 25% of 70. Choice C (35) is incorrect as it is the percentage itself, not the result of the calculation. Choice D (50) is incorrect as it does not represent the result of finding 35% of 70.
2. What word is best to substitute for the underlined words in the following sentence? The coats hanging on the hooks are the patients’.
- A. his
- B. their
- C. them
- D. theirs
Correct answer: B
Rationale: The word 'their' is the correct possessive pronoun to use in this sentence because it indicates that the coats belong to multiple patients. 'Their' shows ownership by a plural group, which is the most suitable choice in this context. Choice A, 'his,' is singular and would imply that all the coats belong to one male patient, which is not the case. Choice C, 'them,' is a pronoun used for indicating objects or people and not possession. Choice D, 'theirs,' is a possessive pronoun but is used to refer to something that belongs to multiple people, not in this case where the coats belong to the patients.
3. The abbreviation DTs on a patient’s chart stands for ___________.
- A. deep tendon reflex
- B. descending thorax
- C. delirium tremens
- D. dextrose in water
Correct answer: C
Rationale: The abbreviation DTs on a patient's chart stands for delirium tremens, which is a severe form of alcohol withdrawal. Symptoms of delirium tremens include confusion, hallucinations, severe agitation, seizures, and autonomic instability. This condition requires prompt medical treatment to prevent serious complications. Choices A, B, and D are incorrect. Deep tendon reflex (A) refers to the reflex response elicited by tapping a tendon with a reflex hammer, descending thorax (B) is not a recognized medical term, and dextrose in water (D) is a solution used for various medical purposes but is not represented by the abbreviation DTs.
4. When working with children from different cultural perspectives, the healthcare provider may find it particularly challenging because:
- A. children's spiritual needs are influenced by their stages of development.
- B. children's spiritual needs are direct reflections of what is happening in their homes.
- C. religious beliefs often impact the parents' views on the illness.
- D. parents are usually the decision-makers, but they may lack awareness of their children's spiritual needs.
Correct answer: A
Rationale: Children's spiritual needs are influenced by their stages of development, not just by what is happening in their homes. Understanding these needs requires knowledge of how children's spiritual beliefs evolve as they grow. Different cultural perspectives can bring varying beliefs and practices regarding children's spiritual development, which may challenge healthcare providers in addressing these needs effectively. Choice B is incorrect because children's spiritual needs are not solely reflections of their home environments but are shaped by various factors. Choice C is incorrect as it discusses the impact of parents' religious beliefs on illness views rather than focusing on children's spiritual needs. Choice D is incorrect as it addresses parental awareness of children's spiritual needs, which is not the primary challenge faced by healthcare providers in this context.
5. What type of bond is present in sodium chloride?
- A. Covalent
- B. Ionic
- C. Metallic
- D. Hydrogen
Correct answer: B
Rationale: Ionic bonds are found in sodium chloride. In an ionic bond, one atom donates an electron to another atom, resulting in the formation of positively and negatively charged ions that are held together by electrostatic forces of attraction. Sodium chloride is a classic example of an ionic compound, where sodium (Na) donates an electron to chlorine (Cl), forming Na+ and Cl- ions that are attracted to each other, creating a crystal lattice structure. Covalent bonds involve the sharing of electron pairs between atoms, which is not the case in sodium chloride. Metallic bonds occur in metals where electrons are delocalized and shared across a lattice, unlike the specific transfer seen in ionic bonds. Hydrogen bonds are a type of intermolecular force, not the primary bond type present in sodium chloride.
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