Correct Answer: C

Rationale: A cardiac output of 5 L/min falls within the normal range for a resting adult, which typically ranges between 4 and 6 L/min. Cardiac output is calculated as the stroke volume (volume of blood in each systole) multiplied by the heart rate. Therefore, a cardiac output of 5 L/min is considered normal. Choices A and B are incorrect as they misinterpret the result as either low or high, which is not the case based on the provided information. Choice D is unrelated to the client's cardiac output and thus incorrect.

Correct Answer: A

Rationale: During a routine health screening for a 1-year-old child, discussing the potential hazards of accidents is crucial. Accidents are the primary source of injury in children and can be life-threatening. Addressing appropriate nutrition now that the child has been weaned from breastfeeding should have already been discussed. Toilet training is important but is typically addressed at a later age as one year is too early for this milestone. While preventing accidents in the house is important, focusing on the potential hazards of accidents in general is more comprehensive and critical for the child's safety.

Correct Answer: C

Rationale: The correct answer is 3+ edema. When assessing for edema, the nurse presses thumbs against the ankle malleolus or the tibia. If the skin retains an indentation, it indicates pitting edema. The grading scale for pitting edema includes: 1+ for mild pitting with slight indentation and no perceptible leg swelling, 2+ for moderate pitting where the indentation subsides rapidly, 3+ for deep pitting with an indentation remaining briefly and visible leg swelling, and 4+ for very deep pitting with a long-lasting indentation and significant leg swelling. Choices A, B, and D do not accurately represent the severity of the edema described in the scenario.

Correct Answer: D

Rationale: When inspecting the ears for cerumen impaction, the nurse should look for a yellowish or brownish waxy material in the external auditory canal. Cerumen, also known as ear wax, is a secretion that can become impacted due to various reasons. It is produced by the vestigial apocrine sweat glands in the external ear canal. Cerumen may partially obscure the eardrum or totally occlude the ear canal. The other options, redness and swelling of the tympanic membrane, an external auditory canal that is longer than normal, and the presence of edema in the external auditory canal, are not indicative findings of cerumen impaction.

Correct Answer: D

Rationale: Muscle strength is graded on a scale of 0 to 5. A grade of 5 indicates normal strength and is described as full ROM against gravity with full resistance. Grade 4 indicates good strength and full ROM against gravity with some resistance. Grade 3 indicates fair strength and full ROM with gravity. Grade 2 indicates poor strength and full ROM with gravity eliminated (passive motion). Grade 1 indicates trace strength and slight contraction. Grade 0 indicates zero strength and no contraction. Therefore, the correct answer is 'Full ROM against gravity with some resistance.' Choices A, B, and C are incorrect as they do not match the description of muscle strength associated with a grade of 4.