how many milligrams are in 34 grams
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Nursing Elites

HESI A2

HESI A2 Math Practice Test 2023

1. How many milligrams are in 3.4 grams?

Correct answer: B

Rationale: To convert grams to milligrams, you need to multiply by 1,000 because there are 1,000 milligrams in 1 gram. Therefore, to find out how many milligrams are in 3.4 grams, you multiply 3.4 by 1,000 which equals 3,400 mg. Choices A, C, and D are incorrect because they do not correctly convert grams to milligrams.

2. Which organelle is the site of photosynthesis in plant cells?

Correct answer: B

Rationale: The correct answer is B: Chloroplasts. Chloroplasts are responsible for conducting photosynthesis in plant cells. They contain chlorophyll, a pigment that captures light energy and converts it into chemical energy through the process of photosynthesis. Mitochondria (choice A) are known as the powerhouse of the cell and are involved in cellular respiration, not photosynthesis. Ribosomes (choice C) are responsible for protein synthesis. The endoplasmic reticulum (choice D) is involved in protein and lipid synthesis and transport within the cell, not photosynthesis.

3. The nurse assisted the physician in removing the 'cast' from the patient's arm.

Correct answer: A

Rationale: The correct answer is A: 'Protective device.' A 'cast' is a hard protective device used to support and immobilize a broken bone. It is not a 'medicated sleeve' (B), a 'sling' (C), or a 'bandage' (D), as these items serve different purposes in medical care.

4. How are molecules of water bonded to each other?

Correct answer: C

Rationale: Water molecules are bonded to each other by 'hydrogen' bonds. These bonds are not as strong as covalent bonds, which hold the atoms within each water molecule together (Choice B). Ionic bonds (Choice A) involve the transfer of electrons between atoms, which is not the case in water molecules. The term 'molecular' (Choice D) is too general and doesn't specifically describe the type of bond between water molecules.

5. Select the phrase in the following sentence that is not used correctly. Before their hospitalization, the children had rarely eaten three meals a day.

Correct answer: C

Rationale: The phrase 'had rarely' is not used correctly in the sentence. The correct form should be 'rarely eaten' instead of 'had rarely' to convey the past tense of the children's eating habits before their hospitalization. 'Had rarely' is incorrect because it does not match the structure needed to describe the children's eating habits in the past. Choices A, B, and D are grammatically sound and fit appropriately in the sentence.

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