which vacutainer tubes should be used when a requisition calls for blood to be drawn for an hh and glucose test
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

1. Which vacutainer tubes should be used when a requisition calls for blood to be drawn for an H&H and glucose test?

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.

2. Digestion, elimination, and ___________ are the three functions of the digestive system.

Correct answer: C

Rationale: The correct answer is 'absorption.' The three main functions of the digestive system are digestion, absorption, and elimination. Absorption refers to the process of absorbing nutrients and other substances from the digested food into the bloodstream. Choices A, B, and D are incorrect: Constriction is not a primary function of the digestive system, relaxation is not a distinct function in this context, and peristalsis is a muscular movement that aids in digestion but is not one of the three main functions of the digestive system.

3. After performing the appropriate client assessment, which of the following inferences would the nurse make?

Correct answer: A

Rationale: An inference is the nurse's judgment or interpretation of cues gathered during an assessment. In this scenario, identifying a client as hypotensive would be an inference based on blood pressure readings that indicate lower than normal values. Respiratory rate and oxygen saturation levels (choices B and C) are important cues that provide additional data but do not directly point to a specific conclusion like hypotension. The client expressing anxiety about blood work (choice D) is relevant information but relates more to their emotional state rather than a physiological assessment finding.

4. The client reports nausea and constipation. Which of the following would be the priority nursing action?

Correct answer: B

Rationale: The priority nursing action when a client reports symptoms like nausea and constipation is to complete an abdominal assessment. Assessment is crucial as it involves the systematic collection of data to understand the client's condition. By assessing the abdomen, the nurse can gather essential information to make a nursing diagnosis and develop a care plan. Collecting a stool sample (Choice A) may be necessary but comes after the assessment to confirm findings. Administering an anti-nausea medication (Choice C) addresses symptoms but does not address the underlying cause without a thorough assessment. Notifying the physician (Choice D) should come after the assessment to provide a complete picture of the client's condition.

5. Which of the following is NOT an acceptable abbreviation?

Correct answer: A

Rationale: The correct answer is A: D/C. D/C is not an acceptable abbreviation as it can be easily confused with both 'discharge' and 'discontinue.' The abbreviations 'tid' (three times a day), 'bid' (twice a day), and 'qid' (four times a day) are commonly used in medical contexts to indicate dosing frequencies and are widely accepted in healthcare settings.

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