Author: Anonymous

A client with Parkinson’s disease is started on carbidopa/levodopa. Which assessment finding would indicate the medication is having the desired effect?

An expectant mother says to the nurse, “When my sister’s baby was born, it was covered in a cheese-like coating. What is the purpose of this coating?” The correct response by the nurse is to explain that the purpose of vernix caseosa is to

Order: 1 gram of Metreonidazole mixed in the next bag of IV fluids. The dosage available is 150mg/1 mL. How many mL should be added to the bag of IV fluids?

The primary health care provider documents that a client has a bruit over the abdominal aorta. What teaching will the nurse provide for assistive personnel (AP) based on this assessment finding?

An emergency department (ED) case manager is consulted for a client who is homeless. Which intervention would the case manager provide?

A nurse is teaching the parents of a child with cystic fibrosis about daily home care. Which statement by the parents indicates correct understanding of the disease management?

Attention!!! – this question has TWO (2) parts Make sure to answer both of them. Part A [5 pts] Why are some companies choosing to pay ransom (in the wake of a ransomware attack) even in cases when they have backups and could eventually restore all the data and systems? Explain in at most 3 sentences. Part B [5 pts] Based on the lectures and assigned readings/videos, why are some individuals and companies refusing to pay ransom even when they have no backups and are sure to incur significant disruptions in operations? Hint – Think about current trends in ransomware that we discussed in the lecture (evolution and prevalence of attacks). Explain in at most 3 sentences.

Why is proof-of-work blockchain approach (such as in the Bitcoin blockchain) considered a good approach for keeping records of ownership of real estate and other transferable assets? Explain in no more than 4 sentences. Be specific.

Tackle only if you have time – This is a harder question and I am giving it intentionally lower point count (only 2 points) – all ingredients to answer were presented during lecture but you need to connect the dots (the full-fledged argument was not presented explicitly in the lecture). Based on the lectures and assigned readings/videos, explain why k-fold cross-validation is a more robust method for deciding the optimal number of trees (an example of a hyperparameter) in a random forest  compared to just executing a single random partitioning of the data into a training and test set, and looking at the OOB (out-of-bag) error plot based on that split. Answer in no more than 5 sentences. *** Hint: Think about, on one hand, how k-fold cross-validation works and, on the other hand, how we compute OOB error and create the plot of that OOB error relative to the number of trees in the forest.  

Although most children don’t begin to speak until they are a year old, by the age of three they understand most rules of sentence construction and the average 6 year old already has a vocabulary of about 13,000 words.  These skills are particularly impressive considering that at this age, children are not competent at most skills.  Language acquisition is: